| tenable(adjective, steady, stable, tight, four-square) |
| unobjectionable(adjective, steady, stable, tight, four-square) |
| verifiable(adjective, steady, stable, tight, four-square) |
| viable(adjective, steady, stable, tight, four-square) |
| beautiful(adjective, strong, firm, settled) |
| alleged(adjective, steady, stable, tight, four-square) |
| applicable(adjective, steady, stable, tight, four-square) |
| arguable(adjective, steady, stable, tight, four-square) |
| assumed(adjective, steady, stable, tight, four-square) |
| attestable(adjective, steady, stable, tight, four-square) |
| bearable(adjective, steady, stable, tight, four-square) |
| biodegradable(adjective, steady, stable, tight, four-square) |
| biohazard(adjective, steady, stable, tight, four-square) |
| capable of continuing(adjective, steady, stable, tight, four-square) |
| carbon-neutral(adjective, steady, stable, tight, four-square) |
| certifiable(adjective, steady, stable, tight, four-square) |
| checkable(adjective, steady, stable, tight, four-square) |
| clean(adjective, steady, stable, tight, four-square) |
| conjectured(adjective, steady, stable, tight, four-square) |
| consistent(adjective, steady, stable, tight, four-square) |