Nightmarish definition

Some of these dreams are pleasant, while others might be more nightmarish and uncomfortable.

The story keeps kids reading with nightmarish tales of swords, strangers, and other scary things for 12-14 year olds.

So don't expect the intricacies of politics and conspiracy theories that were as prevalent in games like Half Life 2, because Doom solely depends on the action and nightmarish atmosphere to keep you interested.

Every working writer has had her share of nightmarish clients who either failed to pay on time, demanded unreasonable revisions, or changed their mind halfway through a project.