| meaningless(adjective, insignificant, irregular, useless, empty) |
| mingled(adjective, extensive, chaotic, random, haphazard) |
| miscellaneous(adjective, extensive, chaotic, random, haphazard) |
| mixed(adjective, extensive, chaotic, random, haphazard) |
| mongrel(adjective, extensive, chaotic, random, haphazard) |
| motiveless(adjective, insignificant, irregular, empty, senseless) |
| motley(adjective, extensive, chaotic, random, haphazard) |
| multifarious(adjective, extensive, chaotic, random, haphazard) |
| needless(adjective, irregular, empty, senseless, unwarranted) |
| nonsensical(adjective, insignificant, irregular, empty, senseless) |
| occasional(adjective, chance, unpremeditated) |
| odd(chance, haphazard, lucky, accidental, unpremeditated) |
| off the top of one's head |
| off top of head(expression, adjective, idiom, simple, natural) |
| offhanded |
| on-the-spot(free, informal, casual, impulsive, unprepared) |
| on impulse(expression, free, informal, casual, unrehearsed) |
| played by ear(expression, idiom, unqualified, unprepared, unrehearsed) |
| pointless(adjective, careless, insignificant, irregular, senseless) |
| purportless(adjective, insignificant, irregular, empty, senseless) |