Simple Definition of diminish
: to become or to cause (something) to become less in size, importance, etc.
: to lessen the authority or reputation of (someone or something) : to describe (something) as having little value or importance
Full Definition of diminish
Examples of diminish
The strength of the army was greatly diminished by outbreaks of disease.
The drug's side effects should diminish over time.
Nothing could diminish the importance of his contributions.
Origin of diminish
Middle English deminishen, alteration of diminuen, from Anglo-French diminuer, from Late Latin diminuere, alteration of Latin deminuere, from de- + minuere to lessen — more at minor
First Known Use: 15th century
Synonym Discussion of diminish
Rhymes with diminish
Seen and Heard
What made you want to look up diminish? Please tell us where you read or heard it (including the quote, if possible).