In conventional usage, boredom, ennui, or tedium is an emotional state experienced when an individual is left without anything in particular to do, is listlessness and dissatisfaction arising from a lack of occupation or excitement, or feels that a day or period is dull or tedious.
See also: Bored Ape, Boring, Boral, Boreal, Bored (disambiguation), and Bored & Hungry.