careless Synonyms

regardless thoughtless forgetful negligent heedless unthinking inattentive incautious remiss inconsiderate unalert vagarious unwise unweary uninterested unenviable unwary untidy unthrifty amnesiac wasteful ill-advised unsystematic kamikaze lox inadvertently daredevil offhanded throwaway absentminded inattentiveness undiplomatic unobservant hurriedness unstudied thriftless slapdash thankless temerarious tactless supine spendthrift solecistic slovenly slovenliness sloppy slipslop unadvisable unadvised unsensible