different as night and day

Also, different as day and night. Totally unlike. For example, Although they are sisters, they are as different as night and day. Also see night and day.

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Nearby words

diffeomorphism, differ, difference, difference threshold, different, different as night and day, different strokes for different folks, differentia, differentiable, differentiable manifold, differential

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.