| calm |
| certain(adjective, limited, definite, inflexible, restricted) |
| changeless(adjective, certain, limited, definite, inflexible) |
| circumscribed(adjective, certain, limited, definite, inflexible) |
| confirmed(adjective, certain, limited, definite, inflexible) |
| cool |
| coolheaded |
| decided(adjective, certain, limited, definite, inflexible) |
| defined(adjective, certain, limited, definite, inflexible) |
| definite(adjective, certain, limited, inflexible, restricted) |
| definitive(adjective, certain, limited, definite, inflexible) |
| determinate(adjective, certain, limited, definite, inflexible) |
| enduring(adjective, certain, limited, definite, inflexible) |
| firm(adjective, certain, limited, definite, resolute) |
| impassive |
| in the bag(expression, adjective, idiom, certain, limited) |
| inalterable(adjective, certain, limited, definite, inflexible) |
| inexcitable |
| inflexible(adjective, certain, limited, definite, restricted) |
| intent(adjective, certain, limited, definite, inflexible) |