impairment

A more precise association of THC levels and degrees of impairment are not yet available.
Congress Harshes Stoned Drivers’ Mellow|Tim Mak|July 31, 2014|DAILY BEAST
Yet in this case, the degree of impairment seems to have been similar on both sides.
Sex, Booze, and Feminism|Cathy Young|February 22, 2014|DAILY BEAST
In general, the disabled folks are vulnerable to exploitation, in part because of the nature of their impairment.
Philly's Terrified Basement Prisoners|Jeff Deeney|October 16, 2011|DAILY BEAST
As a group, no overall statistically significant improvement or impairment was seen as a result of taking Adderall.
Busting the Adderall Myth|Casey Schwartz|December 21, 2010|DAILY BEAST

But without any evidence of impairment, the FHP had no choice but to give Woods a routine traffic citation.
The Tiger Coverup|Steve Helling|May 3, 2010|DAILY BEAST
The aim is to remove all the disease with the least impairment of function and the minimum sacrifice of healthy tissue.
Manual of Surgery|Alexis Thomson and Alexander Miles
Physical examina tion on this admission was negative, except for some impairment of vision, for which he was given eye-glasses.
Studies in Forensic Psychiatry|Bernard Glueck
This impairment has taken the form of constant and irritating passenger train delays.
The Railroad Problem|Edward Hungerford
Impairment of credit, money stringency and a general declining market were partly responsible.
My Adventures with Your Money|George Graham Rice
She was a short, stoutly built figure, somewhat past the middle of life, but without any impairment of activity in her movements.
Maurice Tiernay Soldier of Fortune|Charles James Lever

Medical definitions for impairment

impairment

[ ĭm-pâr′mənt ]

Weakening, damage, or deterioration, especially as a result of injury or disease.

im•pair′ v.