Infoolable 

Synonym of foolproof. Something or someone that is not going to be fooled.

You are going to get fooled by them!
«No i am not, i am infoolable»

Infoolable by Andesh March 31, 2020

inviolable 

Can't be destroyed. Will last forever.

Donald Trump crossed an inviolable line when he criticized Khizr Khan's Democratice Convention Speech in which Khizr Khan spoke about his son who sacrificed his life for America.

inviolable by gizmo+2 August 1, 2016

Indoorable 

Cuteness the outside world can't relate too, see or appreciate. Something semi inappropriate but still cute.

The comments she makes are so indoorable.

Indoorable by Whore-able_&_Adorable September 21, 2018

Unfoolable 

Definitely a word
When you are not able to be fooled

Claire: well tell me what it is if ur so smart
Emma: I’m not falling for ur tricks. U will never fool me. I’m unfoolable

Unfoolable by Jemilia Karnipp December 29, 2018

indoopable 

The inability to be dooped, or fooled as most mortals would call it.

Oompaville is indoopable Totally Accurate Battle Simulator Devs!!1!!!

(Hi)

indoopable by Panzer_Slasher125 April 21, 2019