Select the INCORRECTLY spelt word.

Cafetaria

The incorrectly spelled word is Cafetaria.

The correct spelling is Cafeteria.

The word "Cafeteria" refers to a restaurant where food is served at counters and customers carry their own food to tables. It is derived from the Italian word "caffetteria", which means "coffee shop".

The other words, "Annihilate", "Frightening", and "Astronomer" are all spelled correctly.