The Lack of an Immune Response to an Antigen

This page is the CodyCross answer for the clue below from Futuristic City , Group 999, Puzzle 2 (Suspended Animation).

Question is: The Lack of an Immune Response to an Antigen

and the answer is: ANERGY

Word Meaning:

ANERGY — (physics) Dilute or disorganized energy, which cannot be transformed into work; bound energy

Definitions from Wiktionary.