SYNDESIS is a playable word

syndesis Scrabble® Dictionary

noun
pl. syndesises or syndeses
synapsis
70 Playable Words can be made from "SYNDESIS"
   2-Letter Words (10 found)
   3-Letter Words (20 found)
   5-Letter Words (12 found)
   6-Letter Words (1 found)
   7-Letter Words (1 found)
   8-Letter Words (1 found)