- Ultraspherical Adj
- Ultrastable Adj
- Ultrastrong Adj
- Ultrastructural Adj
- Ultrastructure Noun Adj
- Ultrasubharmonic Adj Noun
- Ultrasupercritical Adj
- Ultratelemeteor Noun Adj
- Ultrathin Adj Adv
- Ultraviolet Adj Noun
- Ultraweak Adj
- Ultroneous Adj
- Ululant Adj Pres. Participle
- Umbellate Adj
- Umbelliferone Noun Adj
- Umbelliferous Adj
- Umbellonic Adj
- Umbellulate Adj
- Umbellule Noun Adj
- Umbellulic Adj
- Umbellulone Noun Adj
- Umber Noun Adj Verb
- Umbered Adj Past Participle
- Umbilic Adj Noun
- Umbilical Adj Noun
- Umbilicaric Adj Noun
- Umbilicate Adj Verb Noun
- Umbilicated Adj
- Umbilicial Adj
- Umbonal Adj
- Umbonic Adj
- Umbrageous Adj
- Umbral Adj Noun
- Umbrella Noun Adj Verb
- Umbrella-shaped Adj
- Umbrellaed Adj Past Participle
- Umbrellate Adj
- Umbrian Adj Noun
- Umbrous Adj
- Umiak Noun Adj
- Umlaut Noun Verb Adj
- Umpire Noun Verb Adj
- Umpteen Adj Noun
- Umpteenth Adj
- Un-Christian Adj Noun
- Unabashed Adj Past Participle
- Unabated Adj Past Participle
- Unabating Adj
- Unabbreviated Adj Past Participle
- Unabiding Adj
- Unable Adj
- Unabolished Adj
- Unabridged Adj Past Participle
- Unabrogated Adj Past Participle
- Unabsolved Adj Past Participle
- Unabsorbent Adj
- Unacademic Adj Noun
- Unaccented Adj Past Participle
- Unaccentuated Adj
- Unacceptable Adj