decondition

US: (dē′kən dish′ən)

WordReference Random House Unabridged Dictionary of American English © 2026

de•con•di•tion  (dē′kən dish′ən), v.t. 

1. to diminish the physical strength, stamina, or vitality of;
   weaken.
2. to diminish or eliminate the conditioned responses or behavior patterns of.

• de- + condition 1935–40