adjective
1.
Synonyms: rash 1, brash, hasty, hotheaded, ill-advised, incautious, inconsiderate, mad-brained, madcap, reckless
2.
Synonyms: careless 1, feckless, heedless, inadvertent, irreflective, uncaring, unheeding, unrecking, unreflective, unthinking
Contrasted words: mindful
Antonyms: thoughtful
3.
Synonyms: short 5, inconsiderate, sharp, unceremonious, ungracious
Related Word: discourteous, impolite, rude; selfish
Antonyms: thoughtful