Adjective

(en adjective)

Entertaining.

* {{quote-book, year=1963, author=(Margery Allingham), title=(The China Governess)

, chapter=5 citation , passage=‘It's rather like a beautiful Inverness cloak one has inherited. Much too good to hide away, so one wears it instead of an overcoat and pretends it's an amusing new fashion.’}}

* {{quote-magazine, date=2012-12-21

, author=George Monbiot, authorlink=George Monbiot , title=Your gift at Christmas will soon be junk , volume=188, issue=2, page=24 , date=2012-12-10 , magazine= citation , passage=They seem amusing on the first day of Christmas, daft on the second, embarrassing on the third. By the twelfth they're in landfill. For 30 seconds of dubious entertainment, or a hedonic stimulus that lasts no longer than a nicotine hit, we commission the use of materials whose impacts will ramify for generations.}}

Funny, hilarious.

Adjective

(wikipedia undefined) (-)

Lacking a definition or value.

(mathematics, computing) That does not have a meaning and is thus not assigned an interpretation.

The result of division by zero is undefined .