From Longman Dictionary of Contemporary Englishinsistentin‧sis‧tent /ɪnˈsɪstənt/ adjective 1 TELL/ORDER somebody TO DO somethingdemanding firmly and repeatedly that something should happeninsistent that She was insistent that they should all meet for dinner.insistent on They were insistent on good manners.2 CONTINUOUSmaking a continuous pattern of sounds that is difficult to ignore the music’s insistent rhythm —insistently adverb The bell rang again insistently.
Examples from the Corpus
insistent• the insistent pressure of fearinsistent on• Grandma was always insistent on going to church on Sunday. 