Synonyms of definitive in English:

definitive


See definition of definitive

adjective

1‘a definitive decision’

SYNONYMS
conclusive, final, ultimate
decisive, unconditional, unqualified, absolute, categorical, positive, definite
ANTONYMS

provisional

2‘the definitive guide to the movies’

SYNONYMS
authoritative, exhaustive, most reliable, most complete, most perfect, most scholarly, best, finest, consummate
classic, standard, recognized, accepted, approved, official, established