ANT: Timid, puny, cowardly, craven.
=
KEY: Valid.
SYN: Strong, powerful, cogent, weighty, sound, substantial, available, efficient, sufficient, operative, conclusive.
ANT: Weak, invalid, powerless, unsound, unsubstantial, unavailable, inefficient, insufficient, inoperative, obsolete, effete, superseded, inconclusive.
=
KEY: Valor, [See COURAGE].
=
KEY: Valuable.
SYN: Precious, costly, estimable.