| stridulous(adjective, hard, severe, sharp, flat) |
| uncongenial(adjective, conflicting, discordant, strident, dissenting) |
| uneven(adjective, hard, severe, sharp, flat) |
| unlevel(adjective, hard, severe, sharp, flat) |
| unmixable(adjective, harsh, different, contrary, conflicting) |
| unrelenting(adjective, hard, severe, sharp, flat) |
| unresolved |
| untunable |
| untuned |
| abusive(adjective, severe, bleak, stark, austere) |
| acrimonious(adjective, conflicting, dissenting, disagreeing, frictional) |
| austere(adjective, severe, bleak, stark, inhospitable) |
| brutal(adjective, severe, bleak, stark, austere) |
| clinking(adjective, discordant, inharmonious) |
| comfortless(adjective, severe, bleak, stark, austere) |
| cussed(adjective, severe, bleak, stark, austere) |
| discourteous(adjective, severe, bleak, stark, austere) |
| disharmonies |
| disputatious(adjective, conflicting, dissenting, disagreeing, frictional) |
| dissenting(adjective, conflicting, disagreeing, frictional) |