| benumbed(adjective, dull, quiet, flat, heavy) |
| dead(adjective, dull, quiet, flat, informal) |
| hazy(adjective, confused) |
| idle(adjective, lethargic) |
| insensible(adjective, dull, quiet, flat, cold) |
| insensitive(adjective, dull, quiet, flat, heavy) |
| somnolent(adjective, lethargic) |
| stolid(adjective, dull, lethargic) |
| stupefied(adjective, cold, stupid, idle, dead) |
| stupid(adjective, action, informal, lethargic) |
| anesthetized(adjective, unfeeling, numb, insensitive, dazed) |
| callous(adjective, dull, quiet, flat, heavy) |
| debilitated(adjective, lethargic) |
| dopey(adjective, action, slang, lethargic) |
| drowsy(adjective, lethargic) |
| enervated(adjective, lethargic) |
| hebetudinous(adjective, action, lethargic) |
| impassive(adjective, lethargic) |
| jejune(adjective, dull) |
| lackadaisical(adjective, lethargic) |