неожиданный meaning in English

abrupt [abrupter, abruptest]▼(without notice)
adjective
[UK: ə.ˈbrʌpt] [US: ə.ˈbrʌpt]

accidental▼(happening by chance)
adjective
[UK: ˌæk.sɪ.ˈden.tl̩] [US: ˌæk.sə.ˈden.tl̩]

fortuitous▼(happening by chance, not necessarily a lucky one)
adjective
[UK: fɔː.ˈtjuːɪt.əs] [US: fɔːr.ˈtuː.ət.əs]

sudden▼(happening quickly and with little or no warning)
adjective
[UK: ˈsʌd.n̩] [US: ˈsʌd.n̩]

unexpected▼(not expected, anticipated or foreseen)
adjective
[UK: ˌʌ.nɪk.ˈspek.tɪd] [US: ˌʌ.nɪk.ˈspek.təd]

unhoped-for▼(not expected or imagined, see also: unexpected)
adjective
[UK: ʌn.ˈhəʊpt fɔː(r)] [US: ʌnˈhoʊpt fɔːr]