Definitions

1. adjective

Having a harsh, rough, or loud sound.

“The altisonous language of the city’s construction site was jarring to the nearby residents.”

2. noun

A harsh, rough, or loud sound.

“The altisonous noise from the construction site kept me awake all night.”

3. adverb

In a harsh, rough, or loud manner.

“The sound of the siren was altisonously blaring through the streets.”