Top definition
The description of a word that only has one word for it. The opposite of a Synonym.
Thesaurus. There is no Synonym for Thesaurus, therefore Thesaurus is a Uninym.
by dmars July 14, 2005
Mug icon

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug