Antonyms of adj tolerable

2 senses of tolerable

Sense 1
tolerable (vs. intolerable) -- (capable of being borne or endured; "the climate is at least tolerable")

intolerable (vs. tolerable), unbearable, unendurable -- (incapable of being put up with; "an intolerable degree of sentimentality")
        => bitter -- (very difficult to accept or bear; "the bitter truth"; "a bitter sorrow")
        => impossible, insufferable, unacceptable, unsufferable -- (used of persons or their behavior; "impossible behavior"; "insufferable insolence")
        => unsupportable -- (not able to be supported or defended)

Sense 2
adequate, passable, fair to middling, tolerable -- (about average; acceptable; "more than adequate as a secretary")

INDIRECT (VIA satisfactory) -> unsatisfactory -- (not giving satisfaction; "shops should take back unsatisfactory goods"; "her performance proved to be unsatisfactory"; "life is becoming increasingly unsatifactory"; "our discussion was very unsatisfactory")

Similarity of adj tolerable

2 senses of tolerable

Sense 1
tolerable (vs. intolerable) -- (capable of being borne or endured; "the climate is at least tolerable")
       => bearable, endurable, sufferable, supportable -- (capable of being borne though unpleasant; "sufferable punishment")
       => tolerant, resistant -- (able to tolerate environmental conditions or physiological stress; "the plant is tolerant of saltwater"; "these fish are quite tolerant as long as extremes of pH are avoided"; "the new hybrid is more resistant to drought")
          Also See-> permissible#1, allowable#2

Sense 2
adequate, passable, fair to middling, tolerable -- (about average; acceptable; "more than adequate as a secretary")
       => satisfactory (vs. unsatisfactory) -- (giving satisfaction; "satisfactory living conditions"; "his grades were satisfactory")