SINKABLE is a playable word

sink Scrabble® Dictionary

verb
sank, sunk or sunken, sinking, sinks
to move to a lower level
(adjective) sinkable
277 Playable Words can be made from "SINKABLE"
   2-Letter Words (21 found)
   7-Letter Words (4 found)
   8-Letter Words (2 found)