"It looms in my mind that I don't want to disappoint her."

"I will admit that this particular possibility didn't loom large in my mind."

The coming meeting with Kincaid loomed large in his mind.

Something was looming in her mind, something the size of a whale.

Nor does it loom that large in the public's mind.

It was a question that loomed large in his mind.

An image of Reese loomed in her mind, vivid and true.

Kirk was silent; several possibilities were looming in his mind.

There was only one other question, but it loomed big in her mind.

He didn't want to know the real reason, which loomed in his mind as something formless, threatening and final.