or de·em·pha·sis

noun, plural de-em·pha·ses [dee-em-fuh-seez] /diˈɛm fəˌsiz/.
  1. a reduction in emphasis: There has been de-emphasis on athletic activities at the school.
  2. the act or process of de-emphasizing.
  3. Electronics. a process of reducing the relative amplitude of certain frequencies in a signal that have been exaggerated by preemphasis, restoring the signal to its original form.

Origin of de-emphasis

First recorded in 1935–40; de- + emphasis Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018