| unnecessary(adjective, slight, lower, value, important) |
| inessential(noun, adjective, important, spare, insignificant) |
| unessential(adjective, adverb, casual, unimportant, useless) |
| incidental(adjective, mean, slight, small, minor) |
| immaterial(adjective, adverb, mean, slight, lower) |
| insignificant(adjective, mean, slight, lower, value) |
| dispensable(adjective, important, useless, extra, able) |
| extraneous(adjective, important, insignificant, extra, unnecessary) |
| extrinsic(adjective, casual, useless, extra, worthless) |
| inconsequential(adjective, mean, slight, lower, value) |
| trivial(adjective, mean, slight, lower, value) |
| unimportant(adjective, adverb, mean, slight, lower) |
| accidental(adjective, casual, irregular, useless, extra) |
| contingent(adjective, casual, irregular, secondary, subsidiary) |
| fortuitous(adjective, casual, irregular, useless, extra) |
| superfluous(adjective, important, spare, extreme, unimportant) |
| expendable(adjective, important, spare, extreme, useless) |
| foreign(adjective, insignificant, unnecessary, inconsequential, irrelevant) |
| minute(adjective, mean, slight, lower, value) |
| needless(adjective, spare, extreme, casual, useless) |