1) Abad 2) Abated 3) Atrophied 4) Bated 5) Belittled 6) Decreased 7) Ebbed 8) Fell 9) Impaired 10) Less 11) Lessened 12) Reduced 13) Shrank 14) Shrunk 15) Vitiated 16) Waned 17) Weakened 1) Impaired 2) Impaired by diminution 3) Lessened 4) Made to seem smaller or less 5) Vitiated 6) Weakened 
Diminished is to make smaller or less or to cause to appear so. Diminished may also refer to: ...
• (imp. & p. p.) of Diminish
term applied to a minor chord (1 b3 5) with a lowered fifth (i.e. 1 b3 b5) and a chord comprising of minor third intervals. Or a scale composed of successive tones and semitones
[adj] - impaired by diminution 2. [adj] - (of musical intervals) reduction by a semitone of any perfect or minor musical interval
Lowered by a half-step. See 'Alteration'.
when a set of rhythmic values are shortened; all values may be halved, for instance. (Intervals may also be diminished, but this rarely happens in medieval music.) Antonym: augmented.
lessened adjective impaired by diminution
reduced in size or strength as a result of disease or injury