Supplemental vs. Supplementary: What's the Difference?
By Harlon Moss & Janet White || Updated on March 4, 2024
Supplemental and supplementary both refer to something added to complete or enhance, but supplemental often implies filling a deficiency, whereas supplementary suggests an addition for completeness or extension.
Key Differences
Supplemental is a term that typically describes something added to make up for a lack or deficiency. It often refers to things that are necessary to bring something else up to a standard or required level. Supplementary, on the other hand, tends to imply an addition that enhances or extends something without necessarily addressing a deficiency. Supplementary materials in a book, such as appendices or bibliographies, add value and provide further information but are not essential for the primary content to be complete.
Both terms imply an addition, the nuance lies in the purpose of the addition. Supplemental additions are often seen as necessary to correct or improve an inadequacy, whereas supplementary additions are more about enhancement and extension, providing extra value.
The usage of these terms can sometimes overlap in common language, with "supplemental" being used in contexts where something is added to improve the existing conditions, and "supplementary" in situations where the addition serves to provide further support or information. However, the choice between them can subtly change the perceived intention behind the addition.
Supplemental and Supplementary Definitions
Supplemental
Additional to the main element to address a deficiency.
He takes supplemental vitamin D for better health.
Supplementary
Serving as an addition to support or enhance.
The course offers supplementary materials online.
ADVERTISEMENT
Supplemental
Serving to complete or enhance something by filling a lack.
The artist takes on supplemental jobs to support her income.
Supplementary
Providing additional options or resources.
Supplementary readings are recommended for students interested in further study.
Supplemental
Necessary additions to ensure completeness.
Supplemental materials were provided to the research team for comprehensive analysis.
Supplementary
Extra or additional, but not essential for completeness.
The book includes a supplementary chapter on recent developments.
Supplemental
Added to assist in achieving a desired level or standard.
Supplemental tutoring helps students struggling in math.
ADVERTISEMENT
Supplementary
Enhancing understanding or enjoyment without being necessary.
The museum provides supplementary guides for special exhibitions.
Supplemental
Something added to complete a thing, make up for a deficiency, or extend or strengthen the whole.
Supplementary
Something added to complete a thing, make up for a deficiency, or extend or strengthen the whole.
Supplemental
A section added to a book or document to give further information or to correct errors.
Supplementary
A section added to a book or document to give further information or to correct errors.
Supplemental
A separate section devoted to a special subject inserted into a periodical, such as a newspaper.
Supplementary
A separate section devoted to a special subject inserted into a periodical, such as a newspaper.
Supplemental
See supplementary angle.
Supplementary
To provide or form a supplement to.
Supplemental
To provide or form a supplement to.
Supplementary
Additional; added to supply what is wanted.
Supplemental
Acting to supplement.
Supplementary
Something additional; an extra.
Supplemental
Appending.
Supplementary
Added to complete or make up a deficiency;
Produced supplementary volumes
Additional reading
Supplemental
Lacking a regular schedule (as in a supplemental airline).
Supplementary
Functioning in a subsidiary or supporting capacity;
The main library and its auxiliary branches
Supplemental
Something that supplements or adds to.
Supplementary
Added to extend or expand upon the primary content.
Supplementary exercises are available for those who finish early.
Supplemental
A requisition or article of legislation that provides additional funding for a program.
Supplemental
Added to supply what is wanted; additional; being, or serving as, a supplement; as, a supplemental law; a supplementary sheet or volume.
Supplemental
Functioning in a subsidiary or supporting capacity;
The main library and its auxiliary branches
Supplemental
Added to complete or make up a deficiency;
Produced supplementary volumes
Additional reading
Supplemental
Auxiliary or secondary in nature, aiming to improve a situation.
Supplemental insurance provides extra coverage beyond the primary policy.
FAQs
What is the main difference between supplemental and supplementary?
The main difference lies in the purpose: supplemental is used to fill a deficiency, while supplementary is for enhancement or extension.
When is it appropriate to use supplementary?
"Supplementary" is appropriate when referring to additions that enhance or provide extra content without addressing a deficiency.
Can something be both supplemental and supplementary?
Yes, in some contexts, an addition can both fill a gap (supplemental) and provide extra value or information (supplementary).
When should I use supplemental instead of supplementary?
Use "supplemental" when referring to something added to address a lack or need.
What makes a course supplementary?
A course is considered supplementary when it provides additional knowledge or skills beyond the core curriculum, enriching the educational experience without being required for graduation.
Are supplemental and supplementary interchangeable?
While sometimes used interchangeably in common language, choosing between them can convey different intentions based on whether the addition is seen as filling a gap or providing an enhancement.
How do supplementary readings benefit students?
Supplementary readings provide students with additional perspectives and information, deepening their understanding and enriching their learning experience.
Is there a difference in how supplemental and supplementary are used in medical contexts?
In medical contexts, "supplemental" often refers to treatments or nutrients added to address deficiencies, while "supplementary" may refer to additional therapies or information that support overall health or treatment plans.
How do supplemental foods work in diets?
Supplemental foods are added to a diet to address nutritional deficiencies, providing necessary vitamins or minerals that may be lacking.
What are common forms of supplemental healthcare?
Common forms include dental, vision, and prescription drug plans, offering coverage beyond what is provided by basic health insurance.
Can supplemental income affect eligibility for certain programs?
Yes, supplemental income can affect eligibility for need-based programs, as total income is often considered in determining qualification.
How can supplementary materials in textbooks be used effectively?
By providing additional examples, exercises, or explanations, they can deepen understanding and reinforce learning outside of the primary text.
How do supplemental insurance plans work?
Supplemental insurance plans provide additional coverage beyond what is offered by the primary insurance, covering gaps like deductibles and co-payments.
Can supplemental materials become essential?
While supplemental materials are added to address deficiencies, they can become essential for specific purposes, such as achieving a minimum standard of understanding or performance.
Are supplementary votes used in elections?
Yes, in some voting systems, supplementary votes allow voters to choose a first and second preference, ensuring a more comprehensive expression of voter choice.
How does supplemental unemployment insurance work?
Supplemental unemployment insurance provides additional financial support on top of state unemployment benefits, helping to cover a larger portion of lost wages.
What role do supplementary exercises play in physical training?
Supplementary exercises enhance physical training by targeting specific muscles or skills not fully addressed by the main workout routine.
Why might someone need supplemental education?
Supplemental education can help individuals who are struggling with certain subjects or skills, providing the additional instruction needed to reach their educational goals.
How do supplementary angles work in geometry?
Supplementary angles are two angles whose measures add up to 180 degrees, often used to solve problems involving parallel lines and transversals.
What is the importance of supplementary feeding in wildlife conservation?
Supplementary feeding provides additional food resources to support wildlife populations, especially in areas where natural food sources are scarce or during harsh conditions.
About Author
Written by
Harlon MossHarlon is a seasoned quality moderator and accomplished content writer for Difference Wiki. An alumnus of the prestigious University of California, he earned his degree in Computer Science. Leveraging his academic background, Harlon brings a meticulous and informed perspective to his work, ensuring content accuracy and excellence.
Co-written by
Janet WhiteJanet White has been an esteemed writer and blogger for Difference Wiki. Holding a Master's degree in Science and Medical Journalism from the prestigious Boston University, she has consistently demonstrated her expertise and passion for her field. When she's not immersed in her work, Janet relishes her time exercising, delving into a good book, and cherishing moments with friends and family.
