The word abstentious 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: 16
Highest Scoring Words With Friends™ Plays In The Letters abstentious
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Seven Letter Word Alert: (48 words)
abioses, absents, attunes, aunties, autists, bastion, battens, biotest, bitsets, boniest, bonsais, bonuses, botnets, busiest, butanes, butties, buttons, instate, niobate, nosiest, notists, obtains, outbats, outbets, outsets, outsits, sabinos, seitans, sestina, sinuate, situate, statins, station, statues, stetson, subnets, subnote, subsite, subtest, subtone, sustain, tabinet, taoists, tautens, tetanus, teutons, unbaits, unseats