| substantiatable(adjective, steady, stable, tight, four-square) |
| sufferable(adjective, steady, stable, tight, four-square) |
| supportable(adjective, steady, stable, tight, four-square) |
| surmised(adjective, steady, stable, tight, four-square) |
| survivable(adjective, steady, stable, tight, four-square) |
| suspected(adjective, steady, stable, tight, four-square) |
| sustainably(adjective, steady, stable, tight, four-square) |
| tolerable(adjective, steady, stable, tight, four-square) |
| unbroken(adjective, steady, stable, tight, four-square) |
| unceasing(adjective, steady, stable, tight, four-square) |
| unfailing(adjective, steady, stable, tight, four-square) |
| vindicable(adjective, steady, stable, tight, four-square) |
| warrantable(adjective, steady, stable, tight, four-square) |
| well-founded(adjective, steady, stable, tight, four-square) |
| well-grounded(adjective, steady, stable, tight, four-square) |
| workable(adjective, steady, stable, tight, four-square) |
| holistic(adjective, strong, firm, settled) |
| sustained(adjective, strong, firm, settled) |
| systematize(verb, settle, sustain, stable) |
| abated(adjective, strong, firm, settled) |