1. cheerful and joking;
1. It is not appropriate to be jocular at a funeral.
2. said jokingly; said in jest
2. The minister said his statement was just a jocular comment and the media shouldn't have taken it so seriously.
iocus (joke, sport, pastime) (Latin)
blithe, buoyant, ebullient, jocular
despondent, dour, lugubrious, maudlin, morose, saturnine
Joke (joc) + cooler (cular). Imagine a cooler which throws out jokes. (jocular = said or done as a joke)