i-adjective
uninteresting; of little interest
Describes something that fails to capture one's interest; often used in a mild, understated way. Cross-referenced with 興味が薄い, which is a related expression meaning 'interest is thin'.
See also: 興味が薄い
その映画は興味の薄い内容だった。
The movie had uninteresting content.
彼の話はいつも興味の薄いものばかりだ。
His stories are always uninteresting.