| unsanctioned |
combined form of sanctioned. |
| unsanitary |
not free of contaminants or sources of infection; unclean. |
| unsatisfactory |
not of a high enough quality to meet a certain standard or to fulfill a certain need or desire. |
| unsatisfied |
combined form of satisfied. |
| unsaturated |
of an organic compound, containing at least one double or triple bond, and therefore able to acquire additional atoms or groups by direct combination. [2 definitions] |
| unsavory |
having an unpleasant taste or smell; distasteful. [2 definitions] |
| unsay |
to retract or take back (something said). |
| unsayable |
combined form of sayable. |
| unscarred |
combined form of scarred. |
| unscathed |
not hurt or harmed; completely uninjured. |
| unscented |
combined form of scented. |
| unscheduled |
combined form of scheduled. |
| unscholarly |
combined form of scholarly. |
| unschooled |
not educated; untaught or untrained. [2 definitions] |
| unscientific |
not conforming with scientific principles or procedures. [2 definitions] |
| unscramble |
to make orderly again; eliminate confusion from. [2 definitions] |
| unscreened |
combined form of screened. |
| unscrew |
to remove or loosen the screws of. [3 definitions] |
| unscriptural |
combined form of scriptural. |
| unscrupulous |
lacking concern for honesty, fairness, or the like; without conscience or scruples. |
| unseal |
to break or remove the seal of; unfasten; open. [2 definitions] |