/ ɪnˈsɪstənt; NAmE / adjective
1.
insistent (on sth / on doing sth) | insistent (that ... ) demanding sth firmly and refusing to accept any opposition or excuses :
They were insistent on having a contract for the work.
Why are you so insistent that we leave tonight?
She didn't want to go but her brother was insistent.
2.
continuing for a long period of time in a way that cannot be ignored :
insistent demands
the insistent ringing of the telephone
► in·sist·ent·ly adverb