Unscrambling SLIGHTLY gives 79 words. SLIGHTLY is the longest, and SLIGHTLY scores the most at 15 points.
No other single word uses all 8 letters of SLIGHTLY. SLIGHTLY has 8 letters: 1 vowel and 7 consonants, worth 15 points before any board bonuses.
8-letter words 1
7-letter words 2
lightly14sightly14
6-letter words 5
5-letter words 20
ghyll12gills6gilly9gilts6hills8hilly11hilts8light9lilts5shill8shily11sight9silly8silty8slily8still5styli8thill8tills5yills8
4-letter words 25
ghis8gill5gilt5gist5gits5hill7hilt7hist7hits7ills4illy7lilt4lily7list4lits4sigh8sill4silt4sith7slit4syli7this7till4tils4yill7
3-letter words 16
ghi7git4his6hit6ill3its3lis3lit3shy9sit3sly6sty6thy9til3tis3tyg7
2-letter words 10
gs3hi5is2it2li2ls2sh5si2ti2ts2
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.