improper | unfitting, unsuitable, inappropriate |
inconvenient | unsuitable, inappropriate, out of place |
unmeet | unfitting, unsuitable, improper |
unseasonable | unsuitable, inappropriate, unwelcome |
unsorted | unsuitable, unfit, badly chosen |
unsquared | badly fitting, unsuitable, unbecoming |
unsuitable | unfashionable, old-fashioned, passe |
untuneable | unsuitable, disagreeable; or: unmelodious |