The word immeasurably 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: 25
Highest Scoring Words With Friends™ Plays In The Letters immeasurably
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Seven Letter Word Alert: (62 words)
abulias, abysmal, aerials, airable, airbase, alarums, amblers, ambries, amiable, amiably, amylase, arabise, balmier, bammers, bariums, barleys, basilar, bemauls, bilayer, blamers, bummers, burials, embalms, erbiums, imburse, immures, limbers, lumbers, mailers, maimers, malaise, marbles, marimba, marulas, maulers, miasmal, miserly, misrely, misrule, mumbler, mumbles, rambles, realism, remails, rumbles, samurai, sayable, serumal, slammer, slimmer, slumber, slummer, subarea, sublime, subrail, summary, summery, uraemia, useably, yammers, yummier, yummies