| dimple(noun, verb, area, hit, depression) |
| fruitless(adjective, useless, trivial, stiff, empty) |
| gap(noun, break, cut, opening, breach) |
| groove(noun, verb, area, line, score) |
| jejune |
| pointless(adjective, value, insignificant, unimportant, useless) |
| specious(adjective, fake, false, counterfeit, unreasonable) |
| unfilled(adjective, keen, property, eager, blank) |
| valley(noun, area, line, depression, dish) |
| blank(noun, adjective, break, value, insignificant) |
| bowl(noun, area, vessel, thing, depression) |
| cavern(noun, area, empty) |
| dale(noun, area, empty) |
| dull(adjective, deep, resonant) |
| flat(noun, adjective, dull, deep, space) |
| indented(adjective, depressed, empty, out, curved) |
| niche(noun, break, place, cut, position) |
| otiose(adjective, full, useless, trivial, empty) |
| trench(noun, verb, line, score, drain) |
| artificial(adjective, fake, false, counterfeit, sham) |