na-adjective, noun
remote; out-of-the-way; hard-to-reach
Describes a location that is inconveniently far from urban centers, lacking easy access. Often carries a negative nuance of being inconvenient or isolated.
彼の実家は辺鄙な山奥にある。
His family home is in a remote mountain area.
辺鄙な場所なので、車がないと不便だ。
It's an out-of-the-way place, so it's inconvenient without a car.
Compound of 辺 (へん, 'area, vicinity') and 鄙 (ひ, 'rustic, rural'), with rendaku voicing to ぴ. The kanji 鄙 is non-jōyō, so the word is sometimes written as 辺ぴ.