dead end street (noun) blind alley: closed-off passage
Sinonime: characterless, colorless, common,
conventional, decent,
dull,
fair, fair to middling, fairish,
humdrum*, indifferent,
inferior,
insignificant, intermediate,
mainstream, mean, medium, middling, moderate, no great shakes, of poor quality, ordinary, passable,
pedestrian, run-of-the-mill, second-rate, so-so,
standard, tolerable, undistinguished, unexceptional, uninspired, vanilla
Antonime: exceptional,
extraordinary, inferior,
superior,
unusual