unbefuckinglievable /ˌʌnbɪˌfəkɪŋˈliːvəbl/ adjective1 •(vulgar) Far beyond belief; completely extraordinary.The Red Sox were down three games and came back to beat the Yankees‽ That’s just unbefuckinglievable‼ formsmore unbefuckinglievable · most unbefuckinglievable