inflexible

Universal Words adjective 1 (disapproving) that cannot be changed or made more suitable for a particular situation SYNRIGID: an inflexible attitude / routine / system * The rules are too inflexible to allow for human error. * an inflexible retirement age 2 (disapproving) (of people or organizations) unwilling to change their opinions, decisions, etc., or the way they do things: He's completely inflexible on the subject. 3 (of a material) difficult or impossible to bend SYNSTIFF OPPFLEXIBLE inflexibility noun [U] inflexibly adverb