The prefix un— means “not / opposite of”. It appears in 100 English words below.
Below is a complete list of 100 words starting with un, grouped by word length. Common examples include uneasy, unyielding, unscrupulous.Click any word to look up its definition.
Grouped by word length · click to look up
8 letters
9 letters
10 letters
11 letters
13 letters
Frequently Asked Questions
What words start with un?
Common words starting with "un" include uneasy, unyielding, unscrupulous, uncanny, unequivocally. There are 100 words total in this list.
What does the prefix un mean?
The prefix "un" means "not / opposite of". It comes from Latin or Old English and appears in hundreds of common English words.
How many words start with un?
There are 100 words starting with "un" in this list, ranging from unit words to longer ones.
Can I use these words in Scrabble or crosswords?
Yes — all words listed here are valid English vocabulary entries. For Scrabble specifically, check the official word list (TWL or SOWPODS) to confirm tournament validity.