mediocre

adjective

1. of only ordinary or moderate quality; neither good nor bad; barely adequate: The car gets only mediocre mileage, but it’s fun to drive.
2. not satisfactory; poor; inferior: Mediocre construction makes that building dangerous.

adjective

1. often derogatory average or ordinary in qualitya mediocre book

adj.1580s, from Middle French médiocre (16c.), from Latin mediocris “of middling height or state, moderate, ordinary,” figuratively “mediocre, mean, inferior,” originally “halfway up a mountain,” from medius “middle” (see medial (adj.)) + ocris “jagged mountain” (cf. Greek okris “peak, point,” Welsh ochr “corner, border,” Latin acer “sharp;” see acrid). As a noun, “medicore thing or person,” by 1834.