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1. Impaired by diminution
   - lessened, vitiated, weakened
    
2. (of an organ or body part) diminished in size or strength as a result of disease or injury or lack of use
   - atrophied, wasted
    
3. (of musical intervals) reduction by a semitone of any perfect or minor musical interval
   "a diminished fifth"
    
4. Made to seem smaller or less (especially in worth)
   - belittled, small

1. Decrease in size, extent, or range
   - decrease, lessen, fall
    
2. Lessen the authority, dignity, or reputation of
   - belittle

See also: decreased, diminution, impaired, reduced

Type of: change magnitude, decrease, lessen, minify

Encyclopedia: Diminish