OVERPLANNING is a playable word

overplan Scrabble® Dictionary

verb
overplanned, overplanning, overplans
to plan to excess
755 Playable Words can be made from "OVERPLANNING"
   2-Letter Words (28 found)
   3-Letter Words (105 found)
   9-Letter Words (4 found)
   10-Letter Words (1 found)
   12-Letter Words (1 found)