| unframed | (adjective) not provided with a frame | - |
|---|
| unfree | (adjective) hampered and not free; not able to act at will | - |
|---|
| (adjective) held in servitude | - |
| unfrequented | (adjective) devoid of creatures | Synonyms: lonely, solitary |
|---|
| unfretted | (adjective) without frets | - |
|---|
| unfriendly | (adjective) not disposed to friendship or friendliness | - |
|---|
| (adjective) not easy to understand or use | - |
| (adjective) very unfavorable to life or growth | Synonyms: hostile, uncongenial |
| (adjective) not friendly | Synonyms: inimical |
| unfrightened | (adjective) not affected by fright | - |
|---|
| unfrosted | (adjective) (of glass) lacking a frosted coating | - |
|---|
| unfrozen | (adjective) not frozen | - |
|---|
| unfruitful | (adjective) not fruitful; not conducive to abundant production | - |
|---|