To insist is to demand something without waivering, to continue on a course no matter what the objections are or to make a statement and continue to assert its truth.
(verb)
- An example of insist is when you demand a new plate of eggs and won't take no for an answer.
- An example of insist is when you follow through with your plan to go on a picnic, even when it is raining.
- An example of insist is when you say you feel fine and keep saying it over and over without waivering, even when people question you or doubt the truth.