| inveterate(adjective, certain, limited, definite, inflexible) |
| irrefutable(adjective, clear, sound, firm, plain) |
| irresistible(expected, predictable, necessary, inexorable, undeniable) |
| irrevocable(expected, predictable, necessary, inexorable, undeniable) |
| level(adjective, certain, limited, definite, inflexible) |
| limited(adjective, certain, definite, inflexible, restricted) |
| locked on(expression, adjective, strong, easy, solid) |
| made certain(expression, adjective, set, solid, certain) |
| made sure |
| narrow(adjective, certain, limited, definite, inflexible) |
| never-failing(adjective, certain, limited, definite, inflexible) |
| no ifs ands or buts(expression, expected, predictable, necessary, inexorable) |
| obligatory(expected, predictable, necessary, inexorable, undeniable) |
| ordained(expected, predictable, necessary, inexorable, undeniable) |
| packed |
| pat(expected, predictable, necessary, inexorable, undeniable) |
| plotted |
| positive(clear, certain, definite, sure, absolute) |
| precise(adjective, certain, limited, definite, inflexible) |
| preconcerted |