I. adjective
1.
Synonyms: subordinate , collateral, dependent, sub, subject, tributary, under
Related Word: accessory, subservient
Contrasted words: major, prime; first, first-ranking, first-string
Antonyms: primary
2.
formed from something original, primary, or basic
a secondary historical analysis based on original archives
Synonyms: derivate, derivational, derivative, derived
Related Word: borrowed, secondhand; consequent, resultant, subsequent
Contrasted words: basic, principle; first, firsthand, original, uncopied, underived
Antonyms: primary
3.
Synonyms: minor 2, bush, bush-league, dinky, insignificant, lesser, minor-league, small, small-fry, small-time
II. noun
Synonyms: inferior , poor relation, scrub, subaltern, subordinate, underling, understrapper
Related Word: second fiddle, second-in-command