| respectless |
| simple(adjective, easy, natural, casual, impulsive) |
| sloppy(adjective, careless, indifferent, casual, quick) |
| snap(noun, adjective, free, easy, informal) |
| standoffish(adjective, person, cool, indifferent, negative) |
| supercilious(adjective, superior, careless, unreasonable, chance) |
| superficially |
| thoughtlessly |
| unceremoniously |
| unconscious(adjective, simple, careless, natural, casual) |
| unconsidered(noun, careless, casual, thoughtless, impetuous) |
| unfriendly(adjective, person, cool, indifferent, negative) |
| unheedful(adjective, careless, indifferent, unconcerned, sloppy) |
| unready(unqualified, unsuspecting) |
| unreflective(adjective, casual, candid, spontaneous, inattention) |
| unsociable(adjective, person, cool, indifferent, negative) |
| untroubled(adjective, calm, cool, relaxed, detached) |
| unwary(neglect, thoughtless, unqualified, impetuous, unsuspecting) |
| winging it(expression, free, casual, thoughtless, unrehearsed) |
| absent-minded(casual, happy-go-lucky, slapdash) |