| in passing |
| inaccurate(adjective, indifferent, casual, thoughtless, sloppy) |
| incidentally |
| inconsiderately |
| instinctive(noun, adjective, simple, passionate, violent) |
| irregular(careless, chance, casual, arbitrary, unplanned) |
| lazy(mild, relaxed, tolerant, laid-back, permissive) |
| listless(adjective, calm, cool, relaxed, detached) |
| makeshift(free, informal, casual, spontaneous, impromptu) |
| mechanical(adjective, unthinking, superficial, dutiful, sketchy) |
| mellow(adjective, calm, cool, careless, relaxed) |
| neglectful(adjective, calm, cool, careless, relaxed) |
| oblique |
| occasional(adjective, chance, unplanned, unpremeditated) |
| off hand(expression, idiom) |
| parenthetically |
| pococurante(adjective, cool, informal, casual, easygoing) |
| precipitate(noun, adjective, thoughtless, impetuous, unwary) |
| quick(noun, adjective, casual, thoughtless, impetuous) |
| reserved(adjective, person, cool, indifferent, negative) |