intransigent

Refusing to moderate a position, especially an extreme position; uncompromising.

Refusing to agree or come to an understanding; uncompromising; irreconcilable: used especially of some extreme political party. See intransigentist.

Same as intransigentist.

Refusing compromise; uncompromising; inflexible; irreconcilable.

Unwilling to compromise or moderate a position; unreasonable; irreconcilable; stubborn.