Here are some ways to describe a caterwaul:
* Sound: Loud, piercing, wailing, shrill, discordant, mournful
* Origin: A cat, a siren, a human voice, a musical instrument
* Feeling: Unpleasant, annoying, frightening, unsettling, mournful
Here are some examples of how the word "caterwaul" is used:
* "The cat caterwauled all night, keeping everyone awake."
* "The siren's caterwauling was enough to make your ears bleed."
* "The singer's caterwauling voice grated on the nerves."
Essentially, a caterwaul is a sound that's both unpleasant and attention-grabbing. It often evokes a feeling of unease or discomfort.