Smoggy (adjective)

1. Full of or characterized by smog.
2. Hazy and difficult to see through.

Origin:

The word "smoggy" is a derivative of the word "smog" which is a portmanteau of smoke and fog. the term was first used in the early 20th century to describe the thick, polluted air in london and other industrial cities.

Examples:

1. The smoggy air made it difficult to see the city skyline.
2. It was a smoggy day and visibility was poor.
3. The smoggy conditions caused health problems for many people.
4. The city was smoggy and the air was thick with pollution.
5. It was a smoggy morning and the sun was barely visible.