| unnatural |
not according to natural laws or processes. [2 definitions] |
| unnecessary |
not needed or required. |
| unpack |
to take out of a package, suitcase, or container. [2 definitions] |
| unpleasant |
not pleasant or agreeable; distasteful. |
| unplug |
to remove (the plug of an electrical appliance) from an outlet. |
| unpopular |
not liked or approved of by many people. |
| unravel |
to undo; reduce from cloth to threads; cause to come apart. [3 definitions] |
| unreasonable |
not acting or behaving with good sense; not guided by good judgment or sound thinking. [2 definitions] |
| unreliable |
not able to be relied on. |
| unrest |
a state of trouble, disturbance, or lack of satisfaction. |
| unruly |
not easy to restrict; difficult or impossible to control; wild. |
| unsatisfactory |
not good enough to meet a need or desire; not satisfactory. |
| unseen |
not seen, observed, or discovered; invisible; not noticed. |
| unsettled |
not fixed, stable, or constant; variable. [5 definitions] |
| unsightly |
not pleasant or agreeable to look at; ugly. |
| unstable |
likely to change suddenly. [2 definitions] |
| unsteady |
not stable or secure; not firm. [2 definitions] |
| unsuitable |
not proper or appropriate. |
| unsure |
not certain; having doubt. |
| untangle |
to free from a tangled or snarled condition. [2 definitions] |
| untie |
to free from being tied or bound. [3 definitions] |