| haphazard(adjective, adverb, organization, plan, insignificant) |
| random(adjective, adverb, insignificant, chance, casual) |
| casual(adjective, careless, erratic, frivolous, random) |
| irregular(adjective, insignificant, senseless, confused, variable) |
| aimless(adjective, insignificant, casual, irregular, senseless) |
| chance(adjective, planned, random, chancy) |
| unorganized(adjective, careless, casual, arbitrary) |
| capricious(irregular, erratic, frivolous, random, haphazard) |
| erratic(careless, casual, irregular, frivolous, random) |
| unplanned(adjective, insignificant, irregular, senseless, planned) |
| accidental(adjective, careless, casual, erratic, frivolous) |
| indiscriminate(adjective, insignificant, casual, irregular, senseless) |
| slipshod(adjective, careless, casual, random, arbitrary) |
| tentative(adjective, experimental) |
| trial(adjective, experimental) |
| unsystematic(adjective, careless, casual, unreliable, uneven) |
| desultory(adjective, careless, insignificant, casual, irregular) |
| empirical(adjective, experimental) |
| purposeless(adjective, careless, insignificant, casual, useless) |
| test(adjective, experimental) |