The word undemonstrative 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: 26
Highest Scoring Words With Friends™ Play In The Letters undemonstrative
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Seven Letter Word Alert: (598 words)
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dustmen, earnest, eastern, editors, eminent, emirate, emitted, emitter, emoters, emotive, enamine, enamors, enamour, endears, endives, endmost, endnote, endorse, endures, ensnare, ensuite, ensured, entrain, entrant, entreat, entries, entrust, envenom, enviers, envious, environ, erosive, erotise, erudite, estrone, estuate, etaerio, euaster, eudemon, evaders, evasion, evident, evitate, indents, indorse, inmates, innards, inroads, insaner, instant, instate, instead, insured, intends, intense, intents, interns, intoned, intoner, intones, intorts, introns, intrude, intrust, inturns, inuendo, invader, invades, invents, inverse, inverts, ioduret, iratest, ironman, isomere, itemset, iterate, maestro, maidens, manners, mansion, manured, manures, marines, martens, martins, mastoid, matinee, matrons, matters, matured, matures, meander, meanest, meanies, measure, meatier, medians, mediate, medusae, menders, mention, mentors, merited, meronts, meteors, metrise, metrist, minaret, minders, mindset, minters, minuets, minuter, minutes, misaver, misdate, misdoer, misdone, misread, mistune, misturn, misvote, mitered, mittens, moaners, moderns, moisten, moister, monster, montane, moraine, mordant, mordent, mortise, motives, mounted, mounter, mountie, mourned, mousier, mundane, munited, munites, muriate, muroids, mustard, mustier, mutants, mutated, mutates, mutters, naivest, nastier, nations, natives, natters, nattier, natured, natures, nearest, neatens, neatest, neonate, nervous, netters, neuroma, neurons, neuters, neutron, nimrods, nitrate, nitrene, nitrous, nominee, nonamer, nonarts, nondate, nondiet, nonmate, nonmeat, nonmute, nonsuit, nonuser, norites, nostrum, notated, nutmeat, nutseed, nutsier, nutters, nuttier, oarsmen, omitted, omitter, onetime, ordains, orients, otarine, outdare, outdate, outearn, outmans, outmate, outrant, outrate, outrave, outread, outride, outside, ovaries, overate, overdue, overeat, overman, oversat, oversea, overset, oversit, overuse, radiums, radomes, raiment, rainout, randoms, rations, rattons, ravines, readies, readmes, readmit, readout, reamend, reasted, reaudit, redates, reedits, reemits, remains, remands, remated, remates, remends, reminds, remined, remines, remints, remnant, remotes, remound, remount, removed, removes, renamed, renames, rennets, resaved, residue, resound, restain, restate, restive, resumed, retains, retaste, reteams, retimed, retimes, retinas, retints, retoast, retuned, retunes, reunion, reunite, revised, revoted, revotes, revuist, riveted, roadies, roadmen, roasted, rodents, roisted, romaine, roseate, rosette, rosined, rotated, rotates, rotunda, rotunds, routine, rudites, ruesome, runtime, sainted, sandier, sandmen, sardine, saunter, sauteed, saviour, savored, seamier, sedater, seminar, senator, seriate, seriema, servant, sidearm, sideman, sievert, sinuate, sirname, situate, smarted, smarten, smartie, smatter, smeared, smitten, smutted, snorted, snotted, snotter, snouted, sortied, sounder, stadium, stained, stainer, standee, stander, stannum, stardom, started, starved, station, stative, statued, stature, steamed, steamer, stented, sterane, sterned, sternum, steroid, stinted, stomate, stonier, storied, stormed, stourie, stouter, straint, stratum, striate, strived, striven, student, studier, stunned, stunner, stunted, stunter, sunnier, surname, tainted, tandems, tanners, tannest, tantrum, tasered, tastier, taunted, taunter, tautens, taverns, teatime, tedious, tediums, tenants, tenders, tendons, tenners, tension, tenters, tentier, tenured, tenures, termite, ternate, testier, tetanus, teutons, tierods, timeout, tinders, tinners, tinters, tirades, toasted, toaster, tonearm, tonsure, torment, tourism, tourist, touters, tradein, trained, trainee, transit, treason, treated, triaene, tridems, trident, trienes, triones, tritoma, trivets, truants, trusted, trustee, tsunami, tundras, tutored, tutoree, unaimed, unaired, unarmed, undents, undines, undoers, undrest, unearnt, uneaten, uniters, unmated, unmates, unmeant, unmined, unmoved, unnamed, unnerve, unnoted, unrated, unreset, unrisen, unrivet, unsated, unsaved, unstain, untamed, untimed, untired, untread, untried, unvaned, urinate, urostea, uterine, uttered, vainest, various, varmint, vaunted, vendors, venison, venture, verismo, veritas, versine, version, veteran, vetoers, vintner, virtues, voiders, vomited, vomiter, voteens