noun, noun which may take the genitive case particle 'no'
sheltered upbringing; hothouse upbringing; person with a sheltered upbringing
Idiomatic expression comparing a person's upbringing to a plant raised in a greenhouse, implying overprotection and lack of exposure to hardship. Can refer to the upbringing itself or to the person who experienced it.
He had a sheltered upbringing and doesn't know how harsh the world can be.
Young people with sheltered upbringings are struggling after entering the real world.