NADIR is a playable word

nadir Scrabble® Dictionary

noun
pl. nadirs
a point on the celestial sphere
(adjective) nadiral
34 Playable Words can be made from "NADIR"
   2-Letter Words (8 found)
   3-Letter Words (13 found)
   4-Letter Words (9 found)
   5-Letter Words (4 found)