Antonyms for diminish
become or cause to be less:expand, raise, flatter, prolong, lengthen, extend, amplify, increase, rise, compliment, praise, strengthen, enlarge, grow, develop.
belittle:commend, enhance, approve, exalt, upgrade, laud.
noun:commend, exalt, boost, recommend, appear, raise, compliment, foment, acclaim, praise, countenance, mount, complement, sanction, elongate, aggravate, eulogize, build, distend, develop, emerge, laud, continue, glorify, blow up, dilate, rage, rise, swell, revive, grow, applaud, extol, endorse, inflate, show up, favor, wax, soar, approve, supplement.
Usage examples for diminish
Thus, for want of proper instruction, most American housekeepers not only poison their families with carbonic acid and starve them for want of oxygen, but also diminish health and comfort for want of a due supply of moisture in the air. – The American Woman's Home by Catherine E. Beecher and Harriet Beecher Stowe