thoughtless

Synonyms

inconsiderate

lacking regard for the rights or feelings of others

inconsiderate, unconsidered

without proper consideration or reflection

unreflective, unthinking, unthoughtful

not exhibiting or characterized by careful thought

Antonyms:

thoughtful

exhibiting or characterized by careful thought

considerate

showing concern for the rights and feelings of others

bemused, deep in thought, lost, preoccupied

deeply absorbed in thought

brooding, broody, contemplative, meditative, musing, pensive, pondering, reflective, ruminative

deeply or seriously thoughtful

cogitative

given to cogitation

well thought out

resulting from careful thought

deliberative

involved in or characterized by deliberation and discussion and examination

excogitative

concerned with excogitating or having the power of excogitation

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Synonyms:

uncaring, unthinking

inconsiderate

lacking regard for the rights or feelings of others