cogent Antonyms

lamblike repetitive roundabout self-abasing sesquipedalian slavish superstitious tenancy tortuous unabridged unsound rabid protracted prolonged leggy mad malleable multiloquent multiloquous orotund overlong periphrastic prating prolix verbal voluble big-mouthed blathering phobic straitlaced uncogent unconvincing unpersuasive unsubstantiated wild-eyed as silly as a goose away with the fairies circumlocutionary dragged out wandering weak unending irrelevant circumlocutious unreasoning gabby talky nonrational defenceless devoid of substance