| unadorned(adjective, simple, pure, basic, plainness) |
| unglamourous |
| uninspiring(adjective, dull, simple, flat, plain) |
| unmemorable(adjective, dull, simple, plain, ordinary) |
| unvarnished(adjective, simple, pure, basic, unadorned) |
| widespread(adjective, common, usual, conventional, typical) |
| middle-of-the-road(adjective, usual, average, everyday) |
| adage(noun, saying, chestnut, saw, proverb) |
| axiom |
| chaste |
| chronic(adjective, common, natural, regular, normal) |
| constant(adjective, common, ordinary, natural, usual) |
| continual(adjective, regular, normal, recurrent) |
| corn(noun, dull, idea, dullness, tag) |
| depressing(adjective, boring) |
| dominant(adjective, average) |
| drab(adjective, dull, hard, simple, plain) |
| earthborn |
| expected(adjective, characteristic, common, ordinary, natural) |
| familiar tune(expression, adjective, dull, flat, usual) |