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acquired taste

noun

something that is unfamiliar or objectionable but becomes gradually more liked or accepted: His modern paintings are an acquired taste.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for acquired taste

acquired taste

noun

a liking for something that is at first considered unpleasant
the thing so liked
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Idioms and Phrases with acquired taste

acquired taste

Something one learns to like rather than appreciates immediately. For example, Because it is so salty, caviar for many individuals is an acquired taste, or With its lack of decorative detail, this china pattern is definitely an acquired taste. [Mid-1800s]

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.