乏味的，无聊的，沉闷的，无趣的，令人厌倦的，单调的

1. tedious, boring, dull, uninteresting, tiresome, monotonous

adjectival nouns or quasi-adjectives (keiyodoshi) noun (common) (futsuumeishi)

感到无聊，感到厌烦，感到厌倦

2. to feel bored, to get bored (with), to get tired (of)

intransitive verb noun or participle which takes the aux. verb suru