Lipped [verb]

It is not uncommon for Google to tout changes and updates as being good for users, while being more tight-lipped about how much the company itself also benefits or how any given change may negatively impact businesses and publishers.

An FBI agent shot a man as the two rode aboard a Metro Red Line train in Maryland this week, a spokesman for the transit system said Thursday afternoon, as officials remained tight-lipped about the case.

Robinhood executives are tight-lipped about what those products and services will be or when they’ll arrive.

Pelosi has been notoriously tight-lipped about whom she would like her successor to be.

The numbers speak to a stark reality of systemic bias within the awards themselves, as the tight-lipped academy reveals little about its process.

She carried a broken-lipped jug, and was on her way to the shop which was at least the second cause of all her woes.

He had a roundish face, a little fleshy under the chin, a soft-lipped mouth that from habit he held slightly pursed, muddy eyes.

For Laura still sat at her writing-table, labouring over a paragraph, white lipped and heavy eyed.

"I guess I'm not a very—good business manager," faltered the red-lipped voice with incongruous pathos.

Most of these were workmen of some kind or other, called in to help the lab crew as needed, but all of them were tight-lipped.