The word amphitropous 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: 24
Highest Scoring Words With Friends™ Play In The Letters amphitropous
:
Seven Letter Word Alert: (35 words)
airpump, amorous, amorphs, apthous, armpits, atriums, authors, harpist, hotspur, imparts, impasto, imports, moorish, outraps, outsoar, outspar, pompous, poromas, primost, prompts, prosoma, riotous, ripstop, rumshop, rupiahs, shampoo, support, taproom, thorium, toprims, tourism, triumph, uproots, upstair, utopias