The word undelineated 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: 18
Highest Scoring Words With Friends™ Play In The Letters undelineated
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Seven Letter Word Alert: (31 words)
adenine, annelid, annulet, audited, auditee, daunted, delated, deleted, dentine, detinue, detuned, dilated, diluent, diluted, eluated, lenient, lenited, lineate, luddite, lunated, needled, unaided, undated, undealt, undined, uneaten, unended, unideal, unladen, unlined, untiled