When's the last time you heard of anyone being gruntled, couth or combobulated?
There are a number of words like 'dust' 'moot' and 'with' that can mean exactly opposite things. (e.g., We fought with (alongside) the British in WWII; we fought with (against) the Germans in WWII.)
BTW, I agree with the earlier post thanking you for not posting this in "Breaking News" -- two clues: it's not news, and it's not breaking.