Irrepliable 

Impossible to reply.

Interweb User1: someone repsonded to my bulletin with, "gimme your butt." how does one respond to such a thing?

Interweb User2: Man, to be honest..that's irrepliable.

Irrepliable by Frank Flowers April 14, 2008

irreplicable 

Not able to be replaced or reproduced.

Note: This is NOT a word, but it so should be lol.

The 2001 album is irreplicable, because it is too perfect.

irreplicable by bakdpotato July 3, 2008

irreliable 

Someone who is both irresponsible and unreliable.

Pete's refusal to do his job makes him completely irreliable.

irreliable by stdraege November 4, 2011

irreplacable 

How everyone whos anyone spells irreplaceable

yea that pic is totally irreplacable

irreplacable by Juancho October 2, 2006