厌烦 (yànfán) is a verb meaning 'to be annoyed' or 'to feel irked'—a state of mild but persistent irritation, often arising from repetition, boredom, or unwanted demands. The first character 厌 (yàn) means 'to dislike' or 'to be weary of', while 烦 (fán) means 'to be troubled' or 'to feel vexed'. Together, they form a compound that emphasizes emotional weariness rather than anger; it’s less intense than 恼火 (nǎohuǒ, 'to be furious') but stronger than 不耐烦 (bù nàifán, 'impatient').

This word is commonly used to describe reactions to tedious tasks, nagging people, or overfamiliar situations—e.g., hearing the same story repeatedly, enduring constant complaints, or dealing with slow service. It carries a slightly formal or literary tone and appears frequently in spoken Mandarin as well as written narratives. While it can stand alone as a predicate verb ('他很厌烦'), it also frequently follows subject + 很/有点/越来越 to express degree.