| helluva(adjective, awful, terrible, horrible, afraid) |
| howling(adjective, awful, terrible, horrible, afraid) |
| illimitable(adjective, extent, immeasurable) |
| immane(adjective, awful, terrible, horrible, afraid) |
| mortal(adjective, awful, terrible, horrible, afraid) |
| parlous(adjective, awful, terrible, horrible, afraid) |
| perishing(adjective, awful, terrible, horrible, afraid) |
| plumbless(adjective, deeply, fathomless) |
| scarey(adjective, awful, terrible, horrible, afraid) |
| scathing(adjective, awful, terrible, horrible, afraid) |
| soundless(adjective, deep, infinite, profound, depth) |
| spine-chilling(adjective, awful, terrible, horrible, afraid) |
| splitting(adjective, awful, terrible, horrible, afraid) |
| terrifying(adjective, awful, terrible, horrible, afraid) |
| titanic |
| tragic(adjective, awful, terrible, horrible, afraid) |
| tragical(adjective, awful, terrible, horrible, afraid) |
| unending(adjective, complete, deep, extent, infinite) |
| ungodly(adjective, awful, terrible, horrible, afraid) |
| unholy(adjective, awful, terrible, horrible, afraid) |