Something such as "duh" does not exist in Japanese to my knowledge, though if you wanted to show that something didn't need explanation or something similar 分かってるよ (wakatteru yo) works. You could also say 当たり前じゃないか (atarimaejanai ka), which is a sort of sarcastic phrase similar to "You couldn't get it before?"
dumb in the sense of mute = muet (boy) or muette (girl) dumb in the sense of stupid = bête
we say Nakagawa if we want to say inside in Japanese.
メロン is how you say melon in Japanese.
To say tennis in Japanese.........テニス
Tonto means dumb and Tonta means dumb. In spanish Everything has a grander so if your calling a girl sumb it would be tonta and if you are calling a boy dumb it would be tonto. Like as if I'm going to say the dumb boy it will be "El tonto Cheko" I'f I'm saying the dumb girl it will be "La tanta Cheka"
Oshi
No it is a Japanese skill toy that test your ability to focus and concentrate. People say it's dumb cause either they don't know what it is or the can't even land "big cup"
baka means idiot, and baka na can mean dumb and silly.
you are dumb
baka
The word "dumb" in Tagalog is "bobo."
The word for "dumb" in Malayalam is "മൂക്ക്" (mooku).
You say "Bab-bo".
Dumbo is a word used to say dumb. A dumb girlfriend is the one who does not get what you say. She keeps getting you wrong always.
Stalin
say what?
Not necessarily. Though, the slang definition of 'dumb' is 'without education', you could technically say that kids are dumb. Though, up to a certain point, you can no longer say that as with time comes education and learning, and with education and learning comes wisdom, so to a point you can say kids are dumb.