weak Synonyms

feeble frail watery rickety faint decrepit vulnerable imperfect infirm powerless weakly unassured unstable tottering unsound tottery unreliable unpowerful tremulous unlikely unfit unfirm unable unarmed unconceivable unsubstantial unsufficient unwell weakling weak-kneed weedy weakening weakened wayworn waterish wasted washy wan vulnerability virtueless vincible vapid valetudinarian vacillating weariful quavering shaky shattery sick sickened