noun, noun or participle which takes 'suru'
completely ignoring; passing by without noticing
Used when someone is utterly ignored or overlooked, often deliberately or carelessly. Can be used as a noun or with する.
彼は私の挨拶を素無視した。
He completely ignored my greeting.
道で知人に会ったのに素無視
I was shocked when an acquaintance I met on the street completely ignored me.