The word secularist 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: 15
Highest Scoring Words With Friends™ Plays In The Letters
Seven Letter Word Alert: (71 words)
actress, airless, article, artless, ascites, aulists, auricle, carless, cartels, casters, castile, castles, causers, cauters, celsius, clarets, clauses, cluster, cristae, cruises, crustal, curates, curials, curtail, eclairs, elastic, estrual, laciest, lucites, lusters, lustier, raciest, racists, realist, recasts, recital, reclass, recusal, relists, resails, results, retails, rituals, rustics, rustles, rutiles, sailers, saltier, saluter, salutes, satires, saucers, saucier, scalers, scalier, scarlet, scleras, secular, serials, slaters, slatier, slicers, sluicer, sluices, sucrase, suiters, sulcate, sutlers, taluses, uralite, uricase