rigid

Extremely stiff.

Completely stiff, without any movement.

Totally stiff.

Very stiff.

Nearly stiff, with very little movement.

Highly inflexible.

Used to emphasize a very high degree of inflexibility.

To a moderate degree of inflexibility.

Becoming more and more inflexible over time.

Somewhat inflexible in comparison to others.

Too inflexible.

Completely inflexible, with no exceptions.

Inflexible to an unreasonable degree.

To be in a stiff, unmoving state.

To suddenly become stiff, often as a reaction.

To change from a flexible to a stiff state.

To appear stiff and unnatural in posture.

To perceive one's own body as being stiff.

To become stiff, implying a transformation.

To continue to be in a stiff state.

To be in a standing position without moving.

To be in a sitting position without moving.

To be in a lying position without moving, often due to fear or tension.

To have an inflexible nature.

To appear to be inflexible based on observation.

To develop a more inflexible attitude over time.

To give the impression of being inflexible.

To gradually become more inflexible.

Used to indicate the cause of stiffness, such as an emotion (e.g., rigid with fear).