something that is unfamiliar or objectionable but becomes gradually more liked or accepted:
His modern paintings are an acquired taste.
British Dictionary definitions for acquired taste
acquired taste
noun
1.
a liking for something that is at first considered unpleasant
2.
the thing so liked
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 ]