uncivil (adj.) uncircumcised (adj.) uncirculated (adj.) uncial (adj.) unchurched (adj.) unchristian (adj.) unchivalrous (adj.) unchecked (adj.) unchaste (adj.) unchartered (adj.) uncharted (adj.) uncharitable (adj.) uncharacteristic (adj.) unchanging (adj.) unchanged (adj.) unchangeable (adj.) unchallenged (adj.) unchain (v.) uncertainty (n.) uncertain (adj.)