25B6; adjective VITAL, of vital importance, crucial, critical, urgent, pivotal, momentous, important, key, serious, grave, significant; informal earth-shattering; formal of great moment.
trivial.
25B6; adjective VITAL, of vital importance, crucial, critical, urgent, pivotal, momentous, important, key, serious, grave, significant; informal earth-shattering; formal of great moment.
trivial.
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012