It describes a situation which has a fancy climax but with a simple ending. For example, if an author spend a whole page writing how he/she struggled to catch the fish and say in the end, "then I let the fish go," them it is anticlimactic.
The ending of this movie was very anticlimactic.
by Little Mushroom November 27, 2015
the even was very anticlimactic
by pudding11 April 26, 2006
the opposite of building to a climax. instead, making potentially rising ideas and energy steady, or falling.

relating to a person's tone of voice; sounding dull, less enthusiastic, or normal tone in cases of excitement.
Sarcasm would be an example of being anticlimactic.

"Oh WOW! that sounds soooo...exciting..."
"That was sure anti-climactic"
by BRL~BP October 29, 2009
A dull or disappointing ending or result.
Mike: I'll get the last kill of the round!
*kills an enemy*
*game ends*
Mike: That was anticlimactic.
by agreensnowman June 18, 2014
Series of events having unimpressive ending
A: Have you seen game of thrones finale?
B: Yeah.
A: What do you think of it?
B: It was anticlimactic.
by BreaktheWhee...series May 20, 2019
"O Ashlea, this being your last day has been so anticlimactal"
"Roar" said the Aticlimactal
by Jess Fleety July 4, 2018