Ennui (en-nui): A noun which originated during 1732 from the Old French word “enui” meaning “annoyance” and Late Latin’s “inodaire” meaning “to make loathsome.”
Meanings: weariness, displeasure, dissatisfaction, discontent, or boredom resulting from lack of interest or satiety. Also a feeling of listlessness resulting from lack of the excitement or active engagement.
Ex. The long lecture did nothing but inspire ennui in the students.