| stupefied(adjective, dull, simple, slow, cold) |
| tame(adjective, dull, late, insensibility, behind) |
| weak(adjective, dull, strong, easy, slow) |
| backward(adjective, adverb, dull, simple, low) |
| benumbed(adjective, dull, lethargic) |
| blah(adjective, calm, dull, quiet, weak) |
| dead(adjective, dull, quiet, flat, low) |
| delaying(adjective, slow, late, remiss, tardy) |
| dillydallying(adjective, slow) |
| easygoing(adjective, lazy, lethargic, languid, indolent) |
| exhausted(adjective, uncertain, feeble, weary, shaky) |
| fatigued(adjective, fatigued) |
| foul(adjective, quiet, still, stationary) |
| groggy(adjective, calm, dull, flat, tired) |
| hebetudinous(adjective, action, dull, simple, slow) |
| insouciant(adjective, lethargic, languid, indolent) |
| logy(adjective, dull, slow, slow-moving, snail-paced) |
| loitering(adjective, slow, late, remiss, tardy) |
| nodding(adjective, quiet, slow, heavy, tired) |
| poking(adjective, slow) |