| no great shakes(adjective, simple, plain, indifferent, ordinary) |
| nothing(adjective, dull, simple, flat, plain) |
| plain-spoken(adjective, succinct) |
| practicable(adjective, unimaginative) |
| quotidian(adjective, common, popular, widespread) |
| regular(adjective, dull, quiet, simple, flat) |
| severe |
| staid |
| sterile(adjective, dull, excite, boring, bland) |
| stodgy(adjective, dull, flat, excite, stupid) |
| stuffy(adjective, dull, moderate, stupid, straight) |
| terrestrial(adjective, earthly) |
| tough-minded(adjective, hard, sound, excite, real) |
| trivial(adjective, simple, ordinary, familiar, natural) |
| unchanging(adjective, dull, flat, boring, tedious) |
| unmotivated(adjective, uninspired) |
| unvaried(adjective, dull, stupid, ordinary, familiar) |
| unvarying(adjective, dull, flat, boring, tedious) |
| wishy-washy(adjective, feebleness) |
| accurate(adjective, literal) |