dull
Definition
lacking interest or excitement; not sharp or bright.
中文 缺乏趣味或刺激的；不锋利或不明亮的。
Example
"The lecture was so dull that half the class fell asleep."
lacking interest or excitement; not sharp or bright.
中文 缺乏趣味或刺激的；不锋利或不明亮的。
"The lecture was so dull that half the class fell asleep."