Antonyms of adj insincere

1 sense of insincere

Sense 1
insincere (vs. sincere) -- (lacking sincerity; "a charming but thoroughly insincere woman"; "their praise was extravagant and insincere")

sincere (vs. insincere) -- (open and genuine; not deceitful; "he was a good man, decent and sincere"; "felt sincere regret that they were leaving"; "sincere friendship")
        => bona fide -- (undertaken in good faith; "a bona fide offer")
        => cordial -- (sincerely or intensely felt; "a cordial regard for his visitor's comfort"; "a cordial abhorrence of waste")
        => dear, devout, earnest, heartfelt -- (earnest; "one's dearest wish"; "devout wishes for their success"; "heartfelt condolences")
        => honest -- (without dissimulation; frank; "my honest opinion")
        => genuine, true (prenominal), unfeigned -- (not pretended; sincerely felt or expressed; "genuine emotion"; "her interest in people was unfeigned"; "true grief")
        => heart-whole, wholehearted, whole-souled -- (with unconditional and enthusiastic devotion; "heart-whole friendship"; "gave wholehearted support to her candidacy"; "wholehearted commitment"; "demonstrated his whole-souled allegiance")

Similarity of adj insincere

1 sense of insincere

Sense 1
insincere (vs. sincere) -- (lacking sincerity; "a charming but thoroughly insincere woman"; "their praise was extravagant and insincere")
       => bootlicking, fawning, obsequious, sycophantic, toadyish -- (attempting to win favor from influential people by flattery)
       => buttery, fulsome, oily, oleaginous, smarmy, soapy, unctuous -- (unpleasantly and excessively suave or ingratiating in manner or speech; "buttery praise"; "gave him a fulsome introduction"; "an oily sycophantic press agent"; "oleaginous hypocrisy"; "smarmy self-importance"; "the unctuous Uriah Heep"; "soapy compliments")
       => dissimulative -- (concealing under a false appearance with the intent to deceive; "dissimulative arts")
       => false -- (deliberately deceptive; "false pretenses")
       => feigned -- (not genuine; "feigned sympathy")
       => gilded, meretricious, specious -- (based on pretense; deceptively pleasing; "the gilded and perfumed but inwardly rotten nobility"; "meretricious praise"; "a meretricious argument")
       => hypocritical -- (professing feelings or virtues one does not have; "hypocritical praise")
       => plausible -- (given to or characterized by presenting specious arguments; "a plausible liar")
          Also See-> counterfeit#1, imitative#3; dishonest#1, dishonorable#2; disingenuous#1, artful#1; false#1; unreal#1