Most flashing is a term that refers to something that is conspicuously attention-grabbing or loud. Its antonyms, on the other hand, can be words like subtle, muted, restrained, unobtrusive, inconspicuous, or low-key. Instead of being vibrant and showy, something that is subtle would be quiet and understated. Similarly, muted would imply something that has been softened or toned down to make it less striking. An unobtrusive design or clothing would blend in with its surroundings and avoid drawing attention. These antonyms allow us to describe things that are the opposite of most flashing, highlighting their understated and refined qualities.