un- root words — words with the un- root

The root un- comes from Old English un, meaning not, reverse. 80 words in Dendril are built from it, including unable, unacceptable, unaware, uncertain, unclear, unfortunate, unfortunately, unhappy, unknown, unlike, unlikely, unlimited. Dendril shows them on a free interactive word map — no signup, no ads.

Words that use the un- root

Explore words with un- — words containing the un- root and sharing its sense of "not, reverse". Examples include unable, unacceptable, unaware, uncertain, unclear, unfortunate, unfortunately, unhappy, unknown, unlike, unlikely, unlimited. Click any word to see its own roots, definition, and related words.

The un- root means not, reverse, from Old English un. Recognizing it helps you decode and remember the many English words built on this root.