| extra(adjective, spare, extreme, surplus, unnecessary) |
| free-willed(adjective, feature, characteristic, free, deliberate) |
| free of cost(expression, adjective, idiom, free, paper) |
| freely(adjective, feature, characteristic, free, deliberate) |
| honorific(adjective, feature, characteristic) |
| impertinent(adjective, unwarranted, indecorous, unjustified, undeserved) |
| inappropriate(adjective, excessive, unwarranted, unnecessary, unjustified) |
| intended(verb, adjective, feature, characteristic, free) |
| intentional(adjective, feature, characteristic, free, deliberate) |
| irrelevant |
| liberal(adjective, free, allow, let, liberty) |
| loose(adjective, free, allow, let, liberty) |
| meaningless(adjective, senseless, unnecessary) |
| superabundant(adjective, spare, extreme, useless, extra) |
| uncompelled(adjective, free, deliberate, natural, willing) |
| uncompensated(adjective, feature, characteristic, unpaid) |
| unconstrained(adjective, feature, characteristic, free, deliberate) |
| unlooked-for |
| unprompted(adjective, natural, willing, arrogant, spontaneous) |
| unrequired(adjective, spare, extreme, useless, extra) |