1 : having a very close relationship : very warm and friendly
an intimate acquaintance
They remained intimate friends throughout their lives.
We have an intimate friendship with our neighbors. = We are on intimate terms with our neighbors. [=we are very close friends with our neighbors]
2 : very personal or private
sharing an intimate moment
an intimate conversation
(chiefly US) a store that sells intimate apparel [=women's underwear and clothes for sleeping]
3 : involving sex or sexual relations
They are in an intimate and committed relationship.
He denies that they were ever intimate. = He denies that he was ever intimate with her. [=that he ever had sexual relations with her]
4 of a place : private and pleasant in a way that allows people to feel relaxed and comfortable
The room is small and intimate.
an intimate nightclub
5 : very closely related or connected : very close
There is an intimate connection/relationship between diet and health.
6 : very complete
She has an intimate [=very detailed] knowledge of the company.
The story is now known in intimate detail.
an intimate understanding of the process
— intimately adverb
She is intimately associated/involved with the production.
The problem is intimately connected with/to our culture.
intimately familiar with the experience
Diet and health are intimately [=very closely] related.
Their careers are intimately linked.
She knows the city intimately. [=very well]