ir ‧ re ‧ sis ‧ ti ‧ ble /ˌɪrɪˈzɪstəb ə l◂, ˌɪrɪˈzɪstɪb ə l◂/ BrE AmE adjective
1 . so attractive, desirable etc that you cannot prevent yourself from wanting it
irresistible to
Tax-cutting proposals could prove irresistible to lawmakers.
Men find Natalie irresistible.
2 . too strong or powerful to be stopped or prevented:
I was overcome by an irresistible urge to cry.
—irresistibly adverb