boom
2 antonyms for boom — opposites grouped by meaning.
Verb — To make a loud, deep, resonant sound.
Synonyms by Meaning
1. verb
To make a loud, deep, resonant sound.
“Thunder boomed across the valley.”
Antonyms
How to use boom
The word patterns that sound natural to a native speaker.
Etymology
Imitative in origin, echoing a deep, hollow sound; the economic sense of "rapid growth" likely grew out of the idea of things suddenly expanding, as in a loud burst.
Full origin of boom →