imperforate /im-pûrˈfə-rət/ or imperforated /-rā-tid/

1. Not pierced through or perforated
2. Having no opening
3. Lacking an opening, esp as a result of abnormal development, as in imperforate anus (medicine)
4. Without perforations as a means of separation, as a sheet of postage stamps

imperˈforable adjective

imperforāˈtion noun

• unwrite
• unwrites
• unwriting
• unwritten
• unwrote
• unwrought
• unwrung
• unyeaned
• unyielding
• unyieldingly
• unyieldingness
• unyieldingnesses
• unyoke
• unyoked
• unyokes
• unyoking
• unzealous
• unzip
• unzipped
• unzipping
• unzips
• unzoned
• UOM
• up
• up-