Antonyms of adj fulsome

1 sense of fulsome

Sense 1
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")

INDIRECT (VIA insincere) -> sincere -- (open and genuine; not deceitful; "he was a good man, decent and sincere"; "felt sincere regret that they were leaving"; "sincere friendship")

Similarity of adj fulsome

1 sense of fulsome

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