His fear of the harmless spider was completely irrational.
他对无害蜘蛛的恐惧完全是不理性的。
Choose the synonym of “irrational” in the following sentence: His worries about the plane crashing were completely ______.
C — illogical. “irrational” means adj. not based on reason or logic
Her ______ fear of harmless spiders made no logical sense at all.
B — irrational. “irrational” means adj. not based on reason or logic
irrational — adj. not based on reason or logic. In Chinese: 不理性的.
irrational is pronounced /ɪˈræʃənl/. It breaks into 4 syllables: ir · ra · tion · al.
His fear of the harmless spider was completely irrational. (他对无害蜘蛛的恐惧完全是不理性的。)
illogical, unreasonable, absurd, foolish — all close in meaning to irrational (adj. not based on reason or logic).
Yes. irrational appears on the iSEE Vocab Upper list, which covers 800+ words for the ISEE and SSAT.
ir(not)+rational(rational)→ irrational, unreasonable.