unwilling to change
His inflexible approach to rules frustrated his creative team.
Vocabulary like inflexible appears on the Digital SAT in Words-in-Context questions, where you choose the word that fits a passage's meaning and tone. You can also drill this word with vocabulary flashcards.
motionless; unable to move or resist motion
certain to happen and unavoidable
dependable; incapable of failure or error
well known for bad reasons
conclude; reason by deduction; establish by deduction
lower in quality or rank
related to hell; characteristic of or resembling Hell
tiny; (mathematics) a variable that has zero as its limit
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