- thoughtless
- adj1. careless, heedless, unheeding, unmindful, regardless, disregardful, negligent, neglectful, remiss; inadvertent, inattentive, unobservent, unobserving; inconsiderate, insensible, incogitant, unthinking, forgetful, oblivious; tactless, untactful, undiplomatic, unsolicitous.2. reckless, rash, precipitate, headlong, foolhardy; unreasoning, unreflecting, unreflective; ill-advised, ill-considered, unwise, imprudent, injudicious, impolitic, indiscreet, improvident.3. scatterbrained, harebrained, lamebrained, flighty, giddy, dizzy, Inf. gaga; vacuous, empty, blank, vacant, empty-headed, with rooms to let.4. foolish, Inf. fool, Inf. tomfool, stupid, dumb, senseless, witless, brainless, asinine, idiotic, moronic, crazy, insane, mad; All Sl. nutty, wacky, daffy, loony, screwy, screwball, batty
A Note on the Style of the synonym finder. 2014.