trifle

trifle [Trahy-fuh l]

noun. a thing of little value or importance
verb. treat (someone or something) without seriousness or respect

"Beyonce debuts 'Lemonade' on HBO: A woman not to be trifled with."

"We needn't trouble the headmaster over such trifles."

“These are dangerous people, and they are nothing to be trifled with.”