1. 1〔好き勝手にする〕act as one pleases; have everything one's own way
    • 町ではならず者たちがのさばっている
    • In the town the hoodlums have everything their own way.
  1. 2〔横柄な態度をとる〕act important,《口》 act big;〔高飛車な態度をとる〕act high-handedly
    • そのころから軍部がのさばり始めた
    • About that time the military began to 「act high-handedly [《口》 throw their weight around].