The ancient library held unimaginably vast collections of manuscripts, many of which had never been seen by modern scholars.

The unimaginativeness of the committee's proposals made it hard to believe they'd ever reach a broad audience.

Philosophers debated the unimaginability of a reality in which consciousness had no boundaries.

She stood in the empty room, unimagining the future she had once planned.

I tried to unimagine the terrifying scene after the movie, but it kept returning.

She unimagines the fairy tale to cope with the harsh realities of adulthood.

The explorers confronted an unimagined landscape of shimmering canyons and floating islands.

The unimaginableness of the ancient city's architecture left every visitor speechless.

The symposium explored the unimaginabilities of deep space and the ethical questions they raised.

The film's unimaginative plot failed to captivate the audience.