Find Antonyms

mouth Antonyms

Opposite of mouth

Because the opposite of mouth shifts with each meaning, the 10 antonyms and opposite words below are separated across 3 exact definitions and ranked by contrast strength.
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• noun (Context 1)

The place where a river or stream enters a sea, ocean, or lake.

Usage Example

"A busy port city grew at the source of the river where freshwater met the sea."

Strongest
source
headwaters
Strong
head
fountainhead

• noun (Context 2)

An opening or entrance to a hollow structure, such as a cave, tunnel, or bottle.

Usage Example

"They set up camp just outside the base of the limestone cave."

Strong
base
bottom

• verb (Context 3)

To form words with the lips without making any sound.

Usage Example

"From across the crowded room, she mouthed the answer so no one else could hear."

Strong
shout
voice
vocalize
Weak
aloud

Similar words to mouth

Words similar to mouth shift depending on context. Common synonyms include:

oral cavity
opening
spout
entrance
parrot
lip-sync
aperture
outfall
See all synonyms of mouth

• Nearby Words

mouselike
mousetrap
mousy
mouth
mouthbreather
mouthiness
mouthwash

Cite this Entry

Wordmom. (2026). Antonyms for Mouth. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/antonyms/mouth
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