Answer
There's no easy way to tell someone they are immature, except to come right out and say it to their face. They may not like it, but that's not your problem.
tell them that name calling is also immature. then walk away.
Tell them yes probably I am and long may it continue for when you are old and haggard, I will still be in my youth!
Its mostly because they are insecure, and maybe it might be yourself. But don't wonder about it all day confront the person respectfully and ask them why they think that, now if they hesitate to tell you, that means there is no real reason.
I think that I might not tell someone I like them if I'm not sure if it's a mutual feeling, or it could be that they don't want to have that type of relationship. Or they are silly and immature and want to torture you, but most likely it is one of the first two.
Either you misunderstood, or they're a immature child inside.
Tell him that if he doesn't stop being immature, than you're going to leave him and find someone that treats you right.
she will be so immature that she changes for you. but if shes under12 she will act like she hates you.
The official term is immature They can be called immature or a low class person.
You tell her the truth, without being rude or immature.
Immature
A medical and surgical procedure like abortion can not be immature but the person having it can be. Immature or not, people usually do feel if they are ready to be parents or not. If someone told you it is immature to have an abortion they most likely mean it's not taking your responsibility when in fact it is. Having a child that is not welcome and make yourself go through that trauma just so you wont be called immature is ridiculous. Itś nobody elses business and you have nothing to prove. That only shows the person telling you this have no clue what it is like to be pregnant or to have unwanted pregnancy or to be in your shoes. Pregnancy and abortion is very private and no one can tell someone else what to do.
You ignore him. Tell him he is being immature as nicely as possible and then walk away. If he is someone who really cares about you he will start being nice to you again. If he doesn't, then you don't need someone like that in your life.