Impalpable 

Something you can't touch.

"Can't touch this."

or

"This object is impalpable."

Impalpable by Ketrinon November 20, 2009

impalpable 

Not to be felt.

impalpable by LarstaiT November 7, 2003

impastable 

pasta that is difficult to eat.

Eating spaghetti in a restaurant on a blind date is impastable.

impastable by Supercraptastic February 23, 2011

implacable 

Unable to pacify.
Unable to appease.
Unrelenting.

My enemy is implacable

implacable by Robin December 5, 2004

implacable 

A descriptive word indicative of a person who is predisposed to very clean teeth.

The guy is so implacable that his dentist had to give up his business.

implacable by Paradoctor April 22, 2018

impoppable 

the inability to pop something

“My toes are impoppable after wearing those heels!”

impoppable by lil windex74 April 8, 2024

Imperpable

Nearly flawless; so close to perfection that faults are barely perceptible.

His artwork was imperpable — almost too perfect to criticize.

Imperpable by Christian Ebube Isiakpu(age16) October 16, 2025