SINKING is a playable word

sink Scrabble® Dictionary

verb
sank, sunk or sunken, sinking, sinks
to move to a lower level
(adjective) sinkable
34 Playable Words can be made from "SINKING"
   2-Letter Words (5 found)
   3-Letter Words (10 found)
   4-Letter Words (11 found)
   5-Letter Words (3 found)
   6-Letter Words (3 found)
   7-Letter Words (2 found)