diminish
verb (used with object)
to make or cause to seem smaller, less, less important, etc.; lessen; reduce.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The purest literary talent appears at one time great, at another time small, but character is of a stellar and undiminishable greatness.
From Essays — Second Series by Emerson, Ralph Waldo