Synonyms of legitimate in English:

legitimate


See US English definition of legitimate

See UK English definition of legitimate

See Spanish definition of legítimo

adjective

1‘they have been given permission to run gambling halls, the only legitimate gambling in the area’

SYNONYMS
legal, lawful, licit, legalized, authorized, permitted, permissible, allowable, allowed, admissible, recognized, sanctioned, approved, licensed, statutory, constitutional, within the law, going by the rules, above board, valid, honest, upright
informal legit, by the book
ANTONYMS

illegal, illegitimate

2‘the legitimate heir’

SYNONYMS
rightful, lawful, genuine, authentic, real, true, proper, correct, authorized, sanctioned, warranted, acknowledged, recognized, approved, just
informal legit, kosher
British informal pukka
ANTONYMS

false, fraudulent

3‘these are legitimate grounds for unease’

SYNONYMS
valid, sound, admissible, acceptable, well founded, justifiable, reasonable, sensible, tenable, defensible, supportable, just, warrantable, fair, bona fide, proper, genuine, plausible, credible, believable, reliable, understandable, logical, rational
ANTONYMS

invalid, unjustifiable