Uncertainty, uneasiness, unhappy and upset are feelings.
adjectives that begin with the letter U areuglyunctuousunderratedundiplomaticunbelievableunstoppableurgentusefuluselessuncomfortableUltraUltraconservativeUltramarineUltramodernUmberUmbilicalUnitedUniversalUnjustUnkindUnknowingUnknownUnlawfulUnlikeUnlikelyUnluckyUnlimited
Some things that fly that begin with the letter U are:United Airlines airplaneUlysses butterflyUmbrella bird
Here are some clothing items that begin with the letter U:uniformunderwearunderwire braundershirtunderpants
Unemployment and urbanization are social study words. They begin with the letter u.
Some superheroes that begin with the letter U are Union Jack, Ultra Boy, and U.S.Agent.
Umbrella plant, urginea and ursinia are flowers. They begin with the letter U.
urgency
ullucus
Urchins
Underdog
us
Uranium