inflexible inflexible /ˌɪnˈflɛksəbəl/

adjective

1. () Incapable of change  ( inflexible )
   incapable of change
    A man of inflexible purpose
   a man of inflexible purpose
   
2. Resistant to being bent  ( inflexible )
   resistant to being bent
    An inflexible iron bar
   an inflexible iron bar
    An inflexible knife blade
   an inflexible knife blade
   
3. Not making concessions  ( inflexible , sturdy , uncompromising )
   not making concessions
    Took an uncompromising stance in the peace talks
   took an uncompromising stance in the peace talks
    Uncompromising honesty
   uncompromising honesty
   
4. Incapable of adapting or changing to meet circumstances  ( inflexible , unbending , rigid )
   incapable of adapting or changing to meet circumstances
    A rigid disciplinarian
   a rigid disciplinarian
    An inflexible law
   an inflexible law
    An unbending will to dominate
   an unbending will to dominate