synonymous

syn·on·y·mous

adj \-məs\

Definition of SYNONYMOUS

1

: having the character of a synonym; also : alike in meaning or significance

2

: having the same connotations, implications, or reference <to runners, Boston is synonymous with marathon — Runners World>

— syn·on·y·mous·ly adverb

First Known Use of SYNONYMOUS

1610

Rhymes with SYNONYMOUS

anonymous, antonymous, autonomous, eponymous, homonymous, paronymous, pseudonymous, theonomous