rigid adj.
1 not able/willing to change
VERBS appear, be, seem | become, grow He grew even more rigid and uncompromising as he got older.
ADV. extremely, very | entirely An entirely rigid system is impractical. | excessively | fairly, rather, relatively We operate within fairly rigid parameters.
2 stiff
VERBS be, feel, lie, look, stand She feigned sleep, lying rigid in bed. | become, go | remain
ADV. very | absolutely, completely, quite | almost
PREP. with He went absolutely rigid with shock.
You can also check other dicts: rigid (English, 中文解释 ), wordnet sense, Collins Definition