NIMBI is a playable word

nimbus Scrabble® Dictionary

noun
pl. nimbuses or nimbi
a luminous cloud
(adjective) nimbused
9 Playable Words can be made from "NIMBI"
   2-Letter Words (3 found)
   3-Letter Words (4 found)
   4-Letter Words (1 found)
   5-Letter Words (1 found)