英和和英

an unidentified witness

an unnamed donor

an unidentified species

destination unknown

an anonymous endorsement

an unknown source

an undefined term

an unprintable epithet

an unembellished figure

an uncountable noun

an uncountable noun

an unlisted telephone number

an unidentified ship

of undetermined species

untitled civilians

a mysterious creature

an ineffectual ruler

an uncooperative witness

an unacknowledged emergency

without revealing one's identity

a manuscript of uncertain origin

a confusing assortment

an ineligible pass receiver

an unsupported dogmatic assertion

unproved assumptions

without awareness

the characteristic of lacking common sense

not clearly defined

a dishonor that can not be restored

an unchanging intonation