He digs in his heels when he disagrees with his boss.
dig in one's heels
idiomTo act in a determined manner by firmly maintaining one's beliefs, demands, situation, etc. in the face of opposition.
Origin
disputed originFrom firmly placing one’s heels in the ground, particularly in tug of war (pulling) or when bracing oneself (pushing). Compare drag one's feet (“act slowly, from lack of enthusiasm or to delay”).
The manager wanted to change the schedule, but the team dug in their heels and refused to work weekends.
Despite the mounting pressure from the board to compromise, the CEO dug in her heels, insisting that the original vision for the company remain unchanged.
- 01
abound in one's own sense
To follow one’s own inclinations and opinions.
- 02
ace up one's sleeve
A surprise advantage of which others are not aware.
- 03
act one's age
To behave in a manner appropriate to one's age.
- 04
act one's age, not one's shoe size
Synonym of act one's age (“to behave in a mature manner; to avoid being childish”).
- 05
afraid of one's own shadow
Exceptionally timid.
- 06
air one's dirty laundry in public
To reveal one's sordid secrets to the public.
- 07
air one's dirty linen in public
Synonym of air one's dirty laundry in public.
- 08
albatross around one's neck
A characteristic, possession, associate, or previous deed that hinders one's ability to succeed.