| Word | Definitions | Synonyms |
|---|---|---|
| unperceptiveness | (noun) the lack of insight and sympathetic understanding | - |
| unpermissiveness | (noun) a lack of permissiveness or indulgence and a tendency to confine behavior within certain specified limits | Synonyms: restrictiveness |
| unperson | (noun) a person regarded as nonexistent and having no rights; a person whose existence is systematically ignored (especially for ideological or political reasons) | Synonyms: nonperson |
| unpersuasiveness | (noun) inability to persuade | - |