Supplemental vs. Supplementary

Supplementaladjective

Acting to supplement.

Supplementaryadjective

Additional; added to supply what is wanted.

Supplementaladjective

Appending.

Supplementarynoun

Something additional; an extra.

Supplementaladjective

Lacking a regular schedule (as in a supplemental airline).

Supplementaryadjective

added to complete or make up a deficiency;

‘produced supplementary volumes’; ‘additional reading’;

Supplementalnoun

Something that supplements or adds to.

Supplementaryadjective

functioning in a subsidiary or supporting capacity;

‘the main library and its auxiliary branches’;

Supplementalnoun

A requisition or article of legislation that provides additional funding for a program.

Supplementaryadjective

completing or enhancing something

‘the development of databases supplementary to existing ones’; ‘the programme offers supplementary information about the news’;

Supplementaladjective

Added to supply what is wanted; additional; being, or serving as, a supplement; as, a supplemental law; a supplementary sheet or volume.

Supplementarynoun

a supplementary person or thing.

Supplementaladjective

functioning in a subsidiary or supporting capacity;

‘the main library and its auxiliary branches’;

Supplementarynoun

a question asked in parliament following the answer to a tabled one.

Supplementaladjective

added to complete or make up a deficiency;

‘produced supplementary volumes’; ‘additional reading’;

Supplementaladjective

provided in addition to what is already present or available to complete or enhance it

‘many premature infants need supplemental oxygen soon after birth’;