thoughtless Synonyms

uncaring unthinking slapdash unkind unpolitic unsensible unthrifty unwary unwise vacant vacuous witless ill-advised unobservant undiplomatic ungrateful ungracious undiscerning slipshod stupid supine tactless temerarious thankless thriftless umbilicated unadvisable unadvised uncautious uncharitable unconsidered absentminded scatty featherbrained untactful trigger happy unaffectionate unappreciated unappreciative undiscriminating unguarded unheeding unobliging unperceptive unreflective unseeing unthoughtful self-serving scatterbrained ill-considered