The term "make dim" refers to rendering something less bright or vivid. Antonyms of "make dim" are words that express the opposite meaning or intention. Some of the antonyms for "make dim" are "brighten," "illuminate," "lighten up," "enliven," and "intensify." Brightening implies making something more brilliant or shining, so antonyms would include "darken," "diminish," "obscure," or "shade." Illuminating offers a similar idea of lightening up, clarifying or bringing light to darkness. Enliven and intensify convey the meaning of making something more animated or dynamic, cheering, or stimulating. Ultimately, the opposite of making dim means bringing more brightness, light, or life to an object, color, or scene.