| Word | Definitions | Synonyms |
|---|---|---|
| unvoiced | (adjective) produced without vibration of the vocal cords | Synonyms: hard, surd, voiceless |
| (adjective) not made explicit | Synonyms: unexpressed, unsaid, unspoken, unstated, unuttered, unverbalised, unverbalized | |
| unvoluntary | (adjective) not subject to the control of the will | Synonyms: involuntary, nonvoluntary |