He is known for his adamant nature.
I am a bit adamant with my scripts and will not take up something unless and until it really excites me.
He is an adamant person and I don’t like adamant people.
He was adamant to our pleas for pardon.
Failures are our best teachers and they teach us to be adamant for success.
He was adamant in his refusal.
He was adamant on his demand.
She was adamant.
She was totally adamant about her decision.
He is adamant in his demands.