formality/fɔr.ˈmæ.lə.ti/复数形式formalities1形式, 礼仪a manner that strictly observes all forms and ceremonies同义词: formalness反义词: informality2形式compliance with formal rules3可分级性, 可等级性capable of being graded (for quality or rank or size etc.)4形式a requirement of etiquette or custom同义词: formalities