delusion
/dɪˈluːʒən/noun
1- an idiosyncratic belief or impression which is firmly maintained despite being contradicted by what is generally accepted as reality or rational argument, typically a symptom of mental disorder错觉：
the delusion of being watched.
被监视的错觉。
1.1
- mass noun the action of deluding someone or the state of being deluded欺骗; 被骗：
what a capacity television has for delusion.
电视机很会让人产生错觉。
短语
delusions of grandeur
- a false impression of one's own importance夸大妄想。
派生词
delusional
adjective词源
late Middle English （in the sense 'act of deluding or of being deluded'）： from late Latin delusio（n-）, from the verb deludere （see DELUDE）.