late 14c., from Latin infelicitas "ill luck, misfortune," from infelix (genitive infelicis) "unfruitful, barren; unfortunate, unhappy, causing misfortune, unlucky," from in- "not, opposite of" (see in- (1)) + felix (see felicity).
实用例句
1. You will be surprised there is so much infelicity in the world.
你会感到惊讶世界上竟有这么多不幸的事情.
来自《现代英汉综合大词典》
2. A judgmental infelicity plagued past generations.