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.