(n.) The state of being impaired; injury.

adulteration attrition curtailment cut cutting damage debilitation decrease decrement defectibility defectiveness deficiency depletion depreciation derogation deterioration detraction detriment diminution dip disadvantage disparagement drawback enfeeblement erroneousness extraction fallibility faultiness flaw handicap harm hurt immaturity imperfection impurity inaccuracy inadequacy inadequateness incompleteness inexactitude inexactness injury lack lessening liability loss loss of ground marring mediocrity mischief patchiness prejudice reduction remission retraction retrenchment shortage shortcoming shortening shrinkage sketchiness step backward truncation undermining undevelopment unevenness unperfectedness unsoundness vitiation want weakening worsening