The phrase "frightening experience" refers to something that is very scary or makes you feel afraid.
Sentences with «frightening experience»
According to the previous owner, he has always been around people and other dogs so this incarceration at the shelter must be a very frightening experience for this senior dog. (healthypawsla.com)
It can be a very frightening experience, and one that may not end happily. (babygaga.com)
Being forced into a house or other structure can be the most frightening experience possible for a feral cat. (alleycat.org)