[adj] capable of being borne; "tolerable noise levels"
[adj] neither good nor bad; "an indifferent performance"; "a gifted painter but an indifferent actor"; "her work at the office is passable"; "a so-so golfer"; "feeling only so-so"; "prepared a tolerable dinner"; "a tolerable working knowledge of French"
[adj] capable of being tolerated; "sufferable difficulties"
[adj] able to be tolerated or endured; "the climate is at least tolerable"