| UNa | an operation with exactly one operand |
|---|---|
| UNa | not able to be ascertained |
| UNa | not attributable |
| UNa | used of persons or their behavior |
| UNa | without shame |
| UNa | not invited or requested |
| UNa | not asked for |
| UNa | without being invited |
| UNa | without flaws or loopholes |
| UNa | impossible to assail |
| UNa | able to withstand attack |
| UNa | in an unalterable and unchangeable manner |