frowning (adjective)

1. In Greek mythology, Zeus was often depicted frowning when he was displeased with the mortals.

2. The cartoon character, Grumpy Cat, is known for its perpetual frowning expression.

3. During the Great Depression, people often had a frowning face due to the economic hardship they were facing.

4. In the science fiction novel, the alien creatures had facial expressions that resembled frowning to convey their emotional state.