懇意|こんいkon'i[1]atamadaka (head-high)

1. noun, na-adjectivefriendship; (on) familiar terms; intimacy
   芸術げいじゅつに没頭ぼっとうしているとてもたくさんの人ひとたちとも懇意こんいにしてきた。↗

   I have known intimately a great many persons who were absorbed in the arts.
2. noun, na-adjectivekindness; goodwill

• Synonym親密しんみつWrittenWritten. Stresses a very deep relationship and can also describe ties between countries; more objective than 「懇意」.
• Synonym親しいしたしいNeutralNeutral and the most common everyday word for being close; more colloquial than 「懇意」, and it does not carry the nuance of receiving someone's kindness.
• Synonym別懇べっこんWrittenWritten and rare. Emphasizes that a friendship is exceptionally deep.
• Synonym昵懇じっこんWrittenWritten. Means very intimate; mostly seen in the phrase 「昵懇の間柄」.
• Related気安いきやすいNeutralNeutral. About feeling relaxed and at ease with someone; it does not stress long years of familiar association.
• Related手厚いてあついWrittenWritten. About warm, attentive treatment or hospitality, not a description of the relationship between two people.
• Related親しみ深いしたしみぶかいWrittenWritten but rare. Focuses on the warm, approachable impression a person's character gives, not on an established relationship.
• Related懇篤こんとくWrittenWritten and rare. Emphasizes sincere, attentive treatment of others rather than the closeness of a relationship.
• RelatedねんごろWrittenWritten with an old-fashioned, literary air. Covers both sincere, attentive treatment and an intimate relationship.
• Related友好的ゆうこうてきWrittenWritten. Friendly attitudes or relations, usable for countries and groups as well as individuals; 「懇意」 stresses a close personal tie kept up over time.
• Related近しいちかしいWrittenWritten. Mostly seen as 「近しい人」, referring to people one is close to.
• Related細やかこまやかWrittenWritten. Highlights thoughtful, meticulous care, as in 「細やかな気配り」.
• Related親しみやすいしたしみやすいNeutralNeutral. Describes an approachable personality that is easy to get close to, not an existing friendship.
• Related心安いこころやすいNeutralNeutral but rare in speech. Describes a relationship close enough that no formality or reserve is needed.
• Antonym疎遠そえんWrittenWritten antonym: estranged, with little contact — the exact opposite of the close ties of 「懇意」.

Use 「懇意」 for a close, familiar personal relationship, as in 「懇意にしている」 or 「ご懇意に願います」. For everyday closeness choose 「親しい」; in written or formal prose, 「親密」 is the word for intimacy. The others are narrower — rare written terms, or words for friendliness, warmth and ease rather than a long-standing tie; 「疎遠」 is the antonym.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 親切しんせつ。
2. 交際こうさいが親密しんみつであること。ねんごろ。