Unbending (adjective)

Not able to be bent or is stiff or inflexible.

Origin:

The word "unbending" is derived from the prefix "un-" meaning "not" or "opposite of" and the verb "bending" meaning "to become or to cause to become curved or bent". it is used to indicate that something is not able to be bent or is stiff or inflexible.

Examples:

1. The metal rod was unbending and couldn't be bent by hand.
2. He had an unbending will and never gave up on his goals.
3. Her unbending attitude made it hard for her to work with others.
4. The unbending rule was that all assignments must be turned in on time.
5. His unbending resolve made it hard for anyone to sway him from his position.