"out-of-the-way information"
"out-of-the-way remarks"
"they found a quiet out-of-the-way resort"
He has amassed a lot of out-of-the-way knowledge.
He had the most out-of-the-way sense of humour.
牛津高阶第八版
美国韦氏词典
Dictionary.com
Free Dictionary
维基百科 (自由的百科全书)