rigid
adjective
1. incapable or resistant to bending
- a rigid strip of metal
- a table made of rigid plastic
Similar word(s): inflexible, stiff
2. incapable of compromise or flexibility
Similar word(s): intolerant, strict
3. incapable of adapting or changing to manage a situation
- a rigid disciplinarian
Similar word(s): unadaptable, inflexible, unbending
4. fixed and unmoving
- a face rigid with pain