Nonsensically

The weatherman nonsensically predicted a snowstorm in the middle of summer.

The clown acted nonsensically in front of the children.

The customer nonsensically argued with the cashier over a trivial matter, holding up the line.

The politician's speech was filled with nonsensically vague promises.

She was speaking nonsensically after inhaling too much helium.

She nonsensically believed that her cat could speak English.

The artist nonsensically painted a canvas entirely black and called it a masterpiece.

The patient was muttering nonsensically due to the side effects of the medication.

He nonsensically wore a winter coat in the middle of summer.

He proposed nonsensically, without even knowing her name.

The artist nonsensically painted the sky green and the grass blue in his latest artwork.

He nonsensically jumped into the river to avoid the rain.

The teacher nonsensically marked all the answers as incorrect.

She nonsensically said that she had never met him before, even though they had worked together for years.

He nonsensically changed his mind at the last minute.