Adjective

(en adjective)

Unaffected or unable to be affected by.

*

, title=(The Celebrity), chapter=5 , passage=Although the Celebrity was almost impervious to sarcasm, he was now beginning to exhibit visible signs of uneasiness, the consciousness dawning upon him that his eccentricity was not receiving the ovation it merited.}}

Preventive of any penetration; impenetrable, impermeable, particularly of water.

Immune to damage or effect.

Adjective

(en adjective)

That has not been mixed by stirring.

Not stirred or emotionally excited.

* Charlotte Brontë, Villette

Inadventurous, unstirred by impulses of practical ambition, I was capable of sitting twenty years teaching infants the hornbook, turning silk dresses and making children's frocks.