Rigid vs Stiff

When to use each in English, with meaning, register, and examples.

 RigidStiff
MeaningNot able to bend or change easily.Not able to move easily; hard.
CEFR levelB1B2
Part of speechadjective
Usage notesUse 'rigid' to describe something that is strict or stiff, physically or metaphorically. It's less appropriate for casual conversations about flexible ideas.Used to describe something that is rigid or difficult to bend; also can describe a person who is not relaxed in behavior. Avoid in very casual conversations when referring to people.

Frequently asked questions: Rigid vs Stiff

What's the difference between "Rigid" and "Stiff"?

"Rigid" means: Not able to bend or change easily. "Stiff" means: Not able to move easily; hard.

When should I use "Rigid" and "Stiff"?

They can all be used in everyday English.

Are "Rigid" and "Stiff" the same CEFR level?

"Rigid" is at B1, "Stiff" is at B2 on the CEFR scale.

Related comparisons