Having a rough quality, not musically smooth and refined(adjective)
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Use "lo-fi" in a sentence
"Making inventive use of lo-fi techniques borrowed from Saturday-morning kiddie shows and Grade Z sci-fi, the movie is a something of an adult, live-action cartoon."
"Step 3: Put it to an understated tune that Sufjan Stevens or She & Him might be proud to call their own -- a lo-fi little ditty that's every bit as unassuming as the animation itself."
"While his lo-fi contemporary, Wavves, uses his public persona to chastise the Portuguese while on uppers, Blank Dogs has stayed nearly hidden, content to let rumors that he wears only gauze during live performances play themselves out."