intimate
noun
someone to whom private matters are confided
Synonymsconfidant
verb
give to understand
“I insinuated that I did not like his wife”
imply as a possibility
“The evidence suggests a need for more clarification”
Synonymssuggest
adjective
marked by close acquaintance, association, or familiarity
“intimate friend”
“intimate relations between economics, politics, and legal principles”
concerning things deeply private and personal
“intimate correspondence”
“private family matters”
Synonymsprivatehaving or fostering a warm or friendly and informal atmosphere
“had a cozy chat”
“a relaxed informal manner”
having mutual interests or affections; of established friendship
“on familiar terms”
“pretending she is on an intimate footing with those she slanders”
Synonymsfamiliarused euphemistically to refer to the genitals
“he touched her intimate parts”
involved in a sexual relationship
“the intimate (or sexual) relations between husband and wife”
“she had been intimate with many men”
Synonymssexualinnermost or essential
“the inner logic of Cubism”
“the internal contradictions of the theory”
thoroughly acquainted through study or experience
“this girl, so intimate with nature”
“knowledgeable about the technique of painting”
Source: WordNet 3.1, Princeton University