you write your life in indelible ink 

(phrase apocryphally attributed to Gandhi) , meaning 'you can't go back in time and correct the mistakes you have made; if you have made a mistake in the past you have no choice but live with the consequences and move forward.

son: I didn't get the grades in math, chemistry and physics that i wanted. Now the MIT won't accept me. Is there anything I can do?

father: no. there is nothing you can do. All you can do however, is learn by heart, and apply to your future, Gandhi's famous phrase 'you write you write your life in indelible ink'. What you can do is go study history or some other social science discipline at Columbia University

you write your life in indelible ink by Uncle Dimma May 5, 2013

inductable 

Not capable of being able to be passed though the duct, tube or tubular hole.

I just can't get that speaker cable through that hole in the wall - its inductable.

inductable by Noddy330 June 19, 2009

indelible to the hippocampus 

When you're scared AF and remember it forever.

I was bullied in kindergarten. That kinda shit is indelible to the hippocampus.

indelible to the hippocampus by MaryinPgh October 8, 2018

ineducable 

adj. - unable to be educated

I am the incredible poetical ineducable B-I-Z-MZA-A-R---KIE.

The ineducable Biz was kudrnizing around after blowing some hitters last night.

ineducable by Mowatt boyyyyyyyyyy March 28, 2005

inaudible mumbling 

When somebody cannot answer you in a real sentence, but instead merely mumbles something you can't quite hear, and trails off; possibly chuckling as they do so. It is an unexplained phenomena that usually occurs under stress, or if that person is not comfortable speaking with particular people and is trying to get away.

Alyssa - "Hey Meg, how are you today?"

Meghan - "oh, wellidunnoijustsfjhsfjn..heh..heh heh..."

Alyssa (to another friend) - "looks like a case of inaudible mumbling."

inaudible mumbling by arisa-naomi March 4, 2010

Indelible in the hippocampus 

When you want people to believe your fake story, so you make up a fake scientific explanation with big words and technical terms as to why your story must be true. The goal is to misdirect non-expert questioners and listeners, who don't have enough technical knowledge to pick apart your actually very weak explanation.

"What is your proof that aliens abducted you in the middle of the night 36 years ago and then let you go, leaving no evidence?"
"It's indelible in the hippocampus."

Indelible in the hippocampus by tp217 November 14, 2021

indesible

One that does not betray a friend and remains unmovable when everyone else does.

When everyone else blamed Jake for stealing the pen, his indesible friend, Sam continued to say he was innocent.

indesible by E. Doctor Akonawe May 26, 2006