Differences between 细腻, 细致, 精细 and 深入 All 4 words listed above all in some way have the meaning of fine, exquisite, detailed. So what are the differences between them? Please provice some examples
「细」 in 「细腻」，「细致」 and 「精细」 denotes 'detailed'

「腻」 has the meaning of 'saturated/ rich', 「细腻 mainly means 'exquisite'
Example: 「小说中对感情的描写十分细腻」 - In the novel, the depictions of emotions are very exquisite (rich in details)

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「致」 has the meaning of 'neat',  「细致」 mainly means 'neat and detailed'
Example: 「小说中对感情的描写十分细致」- In the novel, the depictions of emotions are very exquisite (neatly displayed in details)

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「精」 in 「精细」 has the meaning of 'refined' 「精细」 mainly means 'precise'
Example: 「小说中对感情的描写十分精细」- In the novel, the depictions of emotions are very  precise (accurately detailed)

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深入 literally means 'in-depth'
Example: 「小说中对感情的描写十分深入」 - In the novel, the depictions of emotions are very  in-depth (thorough and detailed)

Other Examples:
「细腻刻画」 - exquisite (rich and detailed) description
「细致图案」 - detailed (detailed and neat) patterns
「精细安排」 - precise (refine and detailed) arrangement
「深入调查」 - in-depth (thorough and detailed) investigation