| twin(adjective, close, like, exact, spare) |
| changeless(adjective, change, set, smooth, right) |
| constant(adjective, calm, change, smooth, right) |
| interchangeable(adjective, like, exact, equal, double) |
| unchanged(adjective, fixed, even, rigid, uniform) |
| level(noun, adjective, direct, smooth, right) |
| compatible(adjective, good, close, kind, right) |
| coequal(adjective, like, level, exact, equal) |
| double(adjective, close, like, exact, equal) |
| homogeneous(adjective, simple, like, regular, whole) |
| synonymous(adjective, like, exact, equal, double) |
| unvaried(adjective, direct, smooth, right, flat) |
| drab(adjective, dull, colour, colorless) |
| unfailing(adjective, change, set, certain, regular) |
| aforesaid(adjective, like, exact, equal, double) |
| facsimile(noun, adjective, like, even, similar) |
| likewise(adjective, adverb, like, exact, equal) |
| on a similar note(adjective, adverb, pronoun, addition, analogy) |
| regular(adjective, calm, smooth, right, flat) |
| steady(adjective, calm, smooth, right, flat) |