inflexible
adjective
1. incapable of change
- a man of inflexible purpose
Similar word(s): adamant, adamantine, inexorable, intransigent, fossilised, fossilized, ossified, brassbound, ironclad
2. not making concessions
Similar word(s): hardline, sturdy, uncompromising
3. resistant to being bent
- an inflexible iron bar
- an inflexible knife blade
Similar word(s): inelastic, rigid, stiff, semirigid
4. incapable of adapting or changing to meet circumstances
- an inflexible law
Similar word(s): unadaptable, rigid, unbending