| indistinct(adjective, monotonous, neutral, colorless, expressionless) |
| indistinguishable(adjective, monotonous, neutral, colorless, expressionless) |
| inelaborate(adjective, dull, simple, uninteresting, ironic) |
| intermediate(adjective, monotonous, neutral, colorless, expressionless) |
| ironic(adjective, deadpan, understated, laconic, wry) |
| ironical(adjective, ironic, deadpan, understated, laconic) |
| keen(adjective, ironic, deadpan, understated, laconic) |
| laconic(adjective, ironic, deadpan, understated, wry) |
| low-key(adjective, ironic, deadpan, understated, laconic) |
| matter-of-fact(adjective, dull, simple, boring, bland) |
| matter of fact(expression, idiom, simple, uninteresting) |
| mediocre |
| modest(adjective, dull, simple, uninteresting, ironic) |
| monochrome(adjective, monotonous, neutral, colorless, expressionless) |
| mouldy |
| naked(adjective, dull, simple, uninteresting, ironic) |
| neutral(adjective, monotonous, colorless, expressionless, monochrome) |
| phlegmatic(adjective, dull, simple, uninteresting, ironic) |
| phoned in(expression, adjective, dull, boring, bland) |
| plain(adjective, dull, simple, uninteresting, ironic) |