| definite |
| dependable(adjective, firm, solid, stable, fixed) |
| dispassionate(calm, composed, unflappable) |
| easy-going(adjective, calm, smooth, steady, temperate) |
| easygoing(calm, composed, unflappable) |
| embedded(adjective, strong, secure, substantial, stable) |
| endless(adjective, persistent, continuous, relentless, continual) |
| eternal(adjective, steady, regular, fixed, persistent) |
| even-tempered(adjective, calm, smooth, steady, temperate) |
| everlasting(adjective, persistent, continuous, endless, relentless) |
| fastened(adjective, strong, secure, firm, substantial) |
| flat as a pancake(expression, adjective, idiom, smooth, flat) |
| imperishable(adjective, fixed, static, unchangeable) |
| inactive(adjective, still, passive, motionless, stationary) |
| incessant(adjective, steady, regular, persistent, even) |
| inert(adjective, still, passive, motionless, stationary) |
| intense(adjective, firm, solid, stable, fixed) |
| intent |
| interminable(adjective, persistent, continuous, endless, relentless) |
| invariant(adjective, even) |