untoward
adjective uk/ˌʌn.təˈwɔːd/ us/ˌʌnˈtɔːrd/
意外的；事与愿违的
unexpected and not convenient or unpleasant
Unless anything untoward happens we should arrive just before midday. 除非发生意外，否则我们应该是刚好在中午前到达。
Synonyms: awkward (DIFFICULT)inopportune