inflexible

1. Incapable of change (synset 301028212)
   "a man of inflexible purpose"
   similar to:

   • adamant, adamantine, inexorable, intransigent - impervious to pleas, persuasion, requests, reason
   • die-hard, rock-ribbed - tradition-bound and obstinately opinionated
   • fossilised, fossilized, ossified - set in a rigidly conventional pattern of behavior, habits, or beliefs
   • hard-core - stubbornly resistant to change or improvement
   • brassbound, ironclad - inflexibly entrenched and unchangeable
2. Not making concessions (synset 301029528)
   "took an uncompromising stance in the peace talks"; "uncompromising honesty"
   similar to: hard-line, hardline - firm and uncompromising
   same as: sturdy, uncompromising
3. Resistant to being bent (synset 301026905)
   "an inflexible iron bar"; "an inflexible knife blade"
   also: inelastic - not elastic
   similar to:

   • muscle-bound - having stiff muscles as the result of excessive exercise
   • rigid, stiff - incapable of or resistant to bending
   • semirigid - not fully rigid
4. Incapable of adapting or changing to meet circumstances (synset 301032766)
   "a rigid disciplinarian"; "an inflexible law"; "an unbending will to dominate"
   similar to: unadaptable - not adaptable
   same as: rigid, unbending

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