13 Letter Words for Inefficacious
inefficacious
11 Letter Words for Inefficacious
efficacious
9 Letter Words for Inefficacious
caffeinic, fancifies, iconifies
8 Letter Words for Inefficacious
affusion, cocaines, concause, effusion, officina, succinea, unifaces
7 Letter Words for Inefficacious
acinose, acinous, affines, asconce, asinico, caffeic, caffiso, ciconia, cocaine, cocause, coffins, coiffes, concise, confuse, cuffins, cuisine, eosinic, eucains, euconic, fancies, fanfics, fascine, fiances, finific, fucosan, icosian, nicoise, nicosia, oceanic, oceanus, offices, oficina, scaffie, suffice, uniface, unifies
6 Letter Words for Inefficacious
accise, accuse, acinic, acinos, acinus, acoine, aconic, aeonic, affies, affine, affuse, anisic, cafuso, canoes, caoine, caseic, casein, casini, casino, causen, causon, cicone, cnicus, coffea, coffin, coiffe, conias, conics, cosine, cousin, cuecas, cuffin, cuinfo, effuso, eniacs, eucain, facies, faenus, faines, fanfic, fascio, fauces, fausen, fenusa, fiance, fiasco, ficins, ficoes, fincas, founce, fucose, fusain, fuscin, fusion, icones, iconic, incise, incuse, inface, infeof, infuse, inosic, ionics, oceans, office, oscine, ounces, saccoi, scaife, scance, scenic, sconce, sencio, senufo, siccan, sinaic, siouan, sofane, sonica, succin, uncase, unciae, uncoif, unesco, unface, unicef, unific, unsafe, usance
5 Letter Words for Inefficacious
accus, acies, acini, acnes, acoin, acone, ainoi, ainus, anise, ascii, ascon, aunes, cacei, cafes, caffs, cains, canes, canis, canoe, canos, canso, casco, cauon, cause, ciaos, cines, cions, cisco, cocas, cocin, cocus, coeff, coffs, coifs, coins, cones, confs, conia, conic, conus, cosec, cosen, cosie, cosin, couac, cueca, cuffo, cuffs, cufic, cuifs, cunea, cunei, cusec, cusie, encia, eniac, eosin, euois, faces, facie, faine, fains, fanes, fanos, fasci, fauns, fause, fenis, fices, ficin, ficos, ficus, fiefs, fifes, fifie, finca, fines, finis, finos, focus, foins, fosie, funic, funis, icaco, iceni, icica, icons, incas, incus, infos, insea, insue, ionia, ionic, isiac, naffs, naifs, necia, nefas, neifs, niais, niefs, nifes, niffs, nific, nisei, noise, nuffs, occas, ocean, offic, oisin, onces, oncia, oncus, oscan, oscin, ounce, ousia, safen, saice, saine, saone, sauce, scaff, scena, scian, scion, scoff, scone, scuff, secco, secno, siafu, sicca, siena, sifac, sinai, since, snaff, snafu, sniff, snuff, socii, sofia, sonce, sonic, souce, succi, suine, unais, unces, uncia, uncos, unice, usine, usnea, usnic
4 Letter Words for Inefficacious
acce, aces, acne, acus, aine, ains, ainu, aion, ance, anes, anis, ansi, ansu, anus, asci, asin, asio, aufs, aune, cace, caci, cafe, caff, caic, cain, canc, cane, cans, caon, case, cauf, caus, ceas, ceca, cens, ciao, cine, cion, cisc, coca, coef, coes, coff, coif, coin, conc, cone, conf, coni, cons, cose, coua, coue, cuca, cues, cuff, cuif, cuon, eans, eaus, ecco, econ, ecus, effs, enuf, eoan, eons, esau, esca, euoi, face, fain, fane, fano, fans, faon, fasc, faun, feif, feis, feni, fens, feus, fica, fice, fico, fief, fies, fife, fifo, fine, fini, fino, fins, fisc, fise, foen, foes, foin, fone, fons, foun, fous, fuci, funs, fusc, fuse, icao, ices, icon, inca, info, inia, iocs, ions, nace, naff, naif, naio, nais, naoi, naos, nasi, naso, neaf, nefs, neif, nice, nief, nies, nife, niff, nisi, noes, nose, nous, nsec, nuff, oafs, ocas, oeci, offs, onca, once, ones, onus, saco, safe, saic, sain, sane, sauf, scan, scun, sean, seco, seif, sena, sian, sicc, sice, sien, sife, sina, sine, sion, soca, soce, sofa, sone, suci, suff, sufi, sune, suni, ufos, unai, unca, unce, unci, unco, uncs, unie, unio, unis
3 Letter Words for Inefficacious
acc, ace, aes, aff, ain, ais, anc, ane, ans, anu, ase, auf, caf, cai, can, cen, ceo, cfc, cfi, cfs, cia, cie, cif, cis, cns, con, cos, csc, csi, cue, cun, ean, eas, eau, ecc, eco, ecu, eff, efs, enc, ens, eof, eon, eos, esc, esu, fac, fan, fao, fas, fcs, fec, fei, fen, fes, feu, ffa, fie, fin, foe, fon, fou, fun, iao, ice, ifc, ife, iff, ifs, iii, inc, inf, ins, iof, ion, ios, iou, ise, isn, iso, nae, naf, nas, nco, nea, nef, nei, neo, nie, nis, noa, nos, nus, oaf, oas, oca, oes, off, oie, oii, ois, ona, one, oni, ons, ose, osi, ouf, oui, ous, sac, sai, san, sao, sau, scf, sci, sea, sec, sei, sen, sic, sie, sif, sin, soc, son, sou, sue, suf, sui, sun, uca, ufa, ufo, ufs, una, unc, uni, uns, usa, use
Definitions for Inefficacious
[1] not able to produce the desired effect; ineffective.
[2] failing to produce the desired effect
Words related to Inefficacious
abortive, barren, bootless, feckless, feeble, fruitless, futile, idle, impotent, inadequate, incompetent, indecisive, ineffective, inefficient, inept, inferior, innocuous, inoperative, lame, limited
Words nearby Inefficacious
ineducation, ineffable, ineffaceable, ineffective, ineffectual, inefficacious, inefficacy, inefficiency, inefficient, inegalitarian, inelastic
Origin of Inefficacious
First recorded in 1650–60; in-3 + efficacious
Other words from Inefficacious
in·ef·fi·ca·cious·ly , adverb
in·ef·fi·ca·cious·ness , in·ef·fi·cac·i·ty [in-ef-i-kas -i-tee] /ˌɪn ɛf ɪˈkæs ɪ ti/ , noun
Synonyms for Inefficacious
abortive, anticlimactic, barren, bootless, defeasible, feckless, feeble, forceless, fruitless, futile, idle, impotent, inadequate, incompetent, indecisive, ineffective, inefficient, inept, inferior, innocuous, inoperative, invertebrate, lame, limited, neutralized, nugatory, null, null and void, paltry, powerless, spineless, unable, unavailing, unfruitful, unproductive, unprofitable, unsuccessful, useless, vain, void, withered, worthless