Unscrambling UTTERLY gives 45 words. UTTERLY is the longest, and UTTERLY scores the most at 10 points.
No other single word uses all 7 letters of UTTERLY. UTTERLY has 7 letters: 2 vowels and 5 consonants, worth 10 points before any board bonuses.
7-letter words 1
6-letter words 2
tetryl9turtle6
5-letter words 4
rutty8truly8tuyer8utter5
4-letter words 15
lure4lute4lyre7rely7rule4ruly7tret4trey7true4tule4tyer7tyre7yett7yule7yurt7
3-letter words 17
ert3let3leu3ley6lur3lye6ret3rue3rut3rye6tel3tet3try6tut3tye6yer6yet6
2-letter words 6
el2er2et2re2ut2ye5
Words are from our open word list and include some game-only words. Rude words are left out of this page; the unscrambler shows every valid word, lets you add blank tiles and filter by length.