a feeling of being certain; a thing about which you are certain 确信;确定;确实的事 ‘You will like Rome,’ he said, with absolute certitude. “你会喜欢罗马的。” 他深信不疑地说道。 the collapse of moral certitudes 道德信念的崩溃
Word Originlate Middle English: from late Latin certitudo, from certus ‘certain’.