unbending

adjective

1 the giraffe moves towards me on unbending legs:

stiff, rigid, inflexible, unpliable, inelastic, unmalleable;

straight, undeviating, linear, unswerving, uncurving, as straight as an arrow.

▷antonyms flexible.

2 an unbending and somewhat formal man:

aloof, formal, stiff, reserved, remote, distant, forbidding, stand-offish, strait-laced, conventional, stuffy, cool, unfeeling, unemotional, unfriendly, austere;

informal uptight.

▷antonyms relaxed, informal.

3 the unbending attitudes of the authorities:

uncompromising, inflexible, unyielding, unfaltering, unwavering, hard-line, tough, harsh, strict, stern, severe, firm, resolute, determined, unrelenting, relentless, inexorable, intransigent, immovable.

unbending Oxford Dictionary of English