Antonyms of adj flaccid

2 senses of flaccid

Sense 1
flaccid -- (drooping without elasticity; wanting in stiffness; "a flaccid penis")

INDIRECT (VIA soft) -> hard -- (resisting weight or pressure)

Sense 2
soft, flabby, flaccid -- (out of condition; not strong or robust; incapable of exertion or endurance; "he was too soft for the army"; "flabby around the middle"; "flaccid cheeks")

INDIRECT (VIA unfit) -> fit -- (physically and mentally sound or healthy; "felt relaxed and fit after their holiday"; "keeps fit with diet and exercise")

Similarity of adj flaccid

2 senses of flaccid

Sense 1
flaccid -- (drooping without elasticity; wanting in stiffness; "a flaccid penis")
       => soft (vs. hard) -- (yielding readily to pressure or weight)

Sense 2
soft, flabby, flaccid -- (out of condition; not strong or robust; incapable of exertion or endurance; "he was too soft for the army"; "flabby around the middle"; "flaccid cheeks")
       => unfit (vs. fit) -- (not in good physical or mental condition; out of condition; "fat and very unfit"; "certified as unfit for army service"; "drunk and unfit for service")