Italian

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Etymology

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From perfetto +‎ -ino.

Adjective

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perfettino (feminine perfettina, masculine plural perfettini, feminine plural perfettine)

  1. (informal) excessively meticulous or perfectionistic

Noun

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perfettino m (plural perfettini, feminine perfettina)

  1. (informal) someone who is excessively meticulous or perfectionistic; stickler