stupidly russian

• глу́по

  foolishly, it is stupid, it is silly, stupidly

• ту́по

  dully, stupidly, with a stupid air

• оглаше́нный

  behaving stupidly /noisily

  announced, proclamed

• наглупи́ть

  to act stupidly, to make a blunder, to do something foolish

• тупя́щий

  blunting, dulling

  slow-witted, dull-witted, acting stupidly (colloquial)