The word incremental is playable in Words With Friends™, no blanks required. Because it is longer than 7 letters, you would have to play off an existing word or do it in several moves.
Words With Friends™ Letter Score: 20
Highest Scoring Words With Friends™ Play In The Letters incremental
:
Seven Letter Word Alert: (59 words)
ailment, aliment, ancient, arenite, article, cannier, canteen, carmine, catenin, central, certain, claimer, cleaner, clement, climate, cremate, eminent, emirate, enamine, enteral, enteric, enticer, entrain, eternal, lantern, latrine, lectern, lenient, lineate, lineman, linemen, maltier, manlier, marlite, matinee, mealier, meatier, melanin, metical, minaret, mineral, miracle, nematic, netmail, nitrene, raiment, ratline, recital, reclaim, reclean, recline, reenact, reliant, remnant, retinal, trainee, treacle, trenail, triaene