無聊之至 (mou4 liu4 zi1 zi3) — utterly boring in Cantonesemouˎ₄無liuˎ₄聊ziˉ¹之zi˗₃至简 无聊之至Mandarin Pinyin: wu2 liao2 zhi1 zhi4Meaning of 無聊之至nounutterly boring