or de·em·pha·sis

[ dee-em-fuh-sis ]
/ diˈɛm fə sɪs /

noun, plural de-em·pha·ses [dee-em-fuh-seez] /diˈɛm fəˌsiz/.

a reduction in emphasis: There has been de-emphasis on athletic activities at the school.
the act or process of de-emphasizing.
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. 2019