blither Antonyms

less unthinking less absent-minded less relaxed less mindless less birdbrained less unwatchful less unobservant less unmindful less unheeding less thoughtless less senseless less regardless less abstracted less disregardful less uncaring less slapdash less scatterbrained less precipitate less offhand less irresponsible less indifferent less incautious less imprudent less improvident less frenzied less oblivious less negligent Shut It button one's lip button it dry up keep quiet clam up belt up unhappier still longer dormant quieten down long story short less neglectful less naive less insensitive less inconsiderate less inattentive less heedless less forgetful less clueless less careless cut a long story short