noun, noun or participle which takes 'suru'
false glitter; specious brilliance; showy but empty display
Rare literary noun or suru-verb for something that looks impressive but lacks substance; often used of writing, speech, or appearance.
彼の演説は衒耀に過ぎず、中身がなかった。
His speech was nothing but false glitter, lacking substance.
その文章は衒
The writing avoids specious brilliance and is written concisely.