| empty(adjective, dull, dead, impassive, unresponsive) |
| inexpressive(adjective, dull, dead, impassive, unresponsive) |
| lackluster(adjective, dull, dead, impassive, unresponsive) |
| lusterless(adjective, dull, dead, impassive, unresponsive) |
| nobody home(expression, adjective, dull, dead, impassive) |
| stolid(adjective, dull, dead, impassive, unresponsive) |
| stupid(adjective, dull, dead, impassive, unresponsive) |
| unexpressive(adjective, dull, dead, impassive, unresponsive) |
| vacuous(adjective, dull, dead, impassive, unresponsive) |
| dead(adjective, dull, impassive, unresponsive, deadpan) |
| dull(adjective, dead, impassive, unresponsive, deadpan) |
| expressionless |
| inscrutable(adjective, dull, dead, impassive, unresponsive) |
| poker-faced(adjective, dull, dead, impassive, unresponsive) |
| pokerfaced(adjective, expressionless) |
| vacant(adjective, dull, dead, impassive, unresponsive) |
| wooden(adjective, dull, dead, impassive, unresponsive) |