Antonyms of adj honourable

2 senses of honourable

Sense 1
honorable (vs. dishonorable), honourable -- (worthy of being honored; entitled to honor and respect; "an honorable man"; "led an honorable life"; "honorable service to his country")


Sense 2
ethical, honorable, honourable -- (adhering to ethical and moral principles; "it seems ethical and right"; "followed the only honorable course of action")

INDIRECT (VIA right) -> wrong -- (contrary to conscience or morality or law; "it is wrong for the rich to take advantage of the poor"; "cheating is wrong"; "it is wrong to lie")

Similarity of adj honourable

2 senses of honourable

Sense 1
honorable (vs. dishonorable), honourable -- (worthy of being honored; entitled to honor and respect; "an honorable man"; "led an honorable life"; "honorable service to his country")
       => august, revered, venerable -- (profoundly honored; "revered holy men")
       => laureate -- (worthy of the greatest honor or distinction; "The nation's pediatrician laureate is preparing to lay down his black bag"- James Traub)
       => time-honored, time-honoured -- (honored because of age or long usage; "time-honored institutions")
          Also See-> honest#1, honorable#1; just#1; moral#1; noble#3; reputable#1; worthy#1

Sense 2
ethical, honorable, honourable -- (adhering to ethical and moral principles; "it seems ethical and right"; "followed the only honorable course of action")
       => right (vs. wrong) -- (in conformance with justice or law or morality; "do the right thing and confess")