Synonyms of incommunicable

1 Syllable
dire
2 Syllables
horrid, heinous, odious, evil, fearful, monstrous, hushhush, frightful, dreadful, awful, shocking, beastly
3 Syllables
tightlipped, inhuman, loathsome, description, alarming, outrageous, frightening, nameless, obnoxious, appalling, repugnant, horrible, atrocious, revolting, middle-ground, disgusting, repellent
4 Syllables
unspeakable, detestable, noncommittal, ineffable, repulsive, offensive, untellable, calamitous, even-steven, close-mouthed, overwhelming, unrevealing, execrable
5 Syllables
preternatural, undescribable, unutterable, abominable, indescribable, inexpressible, inconceivable, indefinable, unbelievable
6 Syllables
unimaginable
7 Syllables
incommunicative