never mind

adverb

Pronunciation: /ˈnɛ.vɚˌmaɪnd/ / /ˈnɛv.ə(ɹ)ˌmaɪnd/

Alternative form of nevermind.
“But close enough in spirit as to make no never mind.”

It is not important; do not fret; used to reassure or comfort the person to whom it is said.
“I'm afraid I’ve broken your mug. — Never mind, it was old and I was going to throw it away.”
“Did you fall over and hurt your knee? Never mind, I’ll put a bandage on it.”
Do not be concerned (about someone or something, or about doing something).
“Never mind about me — you go and I’ll join you later.”
“Here’s some money for you. Never mind about paying me back; you can keep it.”
Indicates a withdrawal or retractment of a previous statement.
“You're a fool. — What did you call me? — Never mind.”
“Can you hand me that screwdriver? Wait, never mind, give me the fire extinguisher instead.”
Let alone; much less.
“They wouldn't go near that place, never mind spending an entire day there.”
“It’s remarkable that this game could have been even better than it was. The U.S. has rarely outplayed any opponent in its modern era of World Cup games, never mind a superpower that won its opener 6-2 over Iran.”