legit /lɪˈd͡ʒɪt/adjective 5adverb 2noun 2forms 3 adjective5 •(informal) Legitimate; legal; allowed by the rules; valid. •(informal) Not using cheats.Did you see how fast that person was moving? I don't think they're legit. •(slang) Genuinely good and possessing all the required or expected qualities; the real deal.I checked out her portfolio. She's legit. •(slang) Cool by virtue of being genuine. •Genuine, actual, literal or honest. adverb2 •(informal) Legitimately; within the law. •(slang) Honestly; truly; seriously.He legit thinks he can pass the test on zero sleep.That legit scared the hell out of me. noun2 •(slang) A legitimate child. •(slang) A legitimate; a legitimate actor. formslegits · more legit · most legit