Antonyms of adj weak-kneed

1 sense of weak-kneed

Sense 1
weak-kneed -- (lacking will power or resolution; "the role of the dissenter is not for the weak-kneed")

INDIRECT (VIA irresolute) -> resolute -- (firm in purpose or belief; characterized by firmness and determination; "stood resolute against the enemy"; "faced with a resolute opposition"; "a resolute and unshakeable faith")

Similarity of adj weak-kneed

1 sense of weak-kneed

Sense 1
weak-kneed -- (lacking will power or resolution; "the role of the dissenter is not for the weak-kneed")
       => irresolute (vs. resolute) -- (uncertain how to act or proceed; "the committee was timid and mediocre and irresolute")