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headwater Antonyms

Opposite of headwater

Because the opposite of headwater shifts with each meaning, the antonyms and opposite words below are separated across 2 exact definitions and ranked by contrast strength.
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• noun (Context 1)

A tributary stream of a river close to or forming part of its source (usually used in the plural, 'headwaters').

Usage Example

"The expedition hiked high into the mountains to map the remote headwaters of the Amazon River."

Strongest
mouth
outfall
Strong
estuary
delta

• noun (Context 2)

The water upstream of a hydraulic structure, such as a dam, lock, or hydroelectric plant.

Usage Example

"Heavy spring snowmelt caused the tailwater behind the dam to rise to near-record levels."

Strongest
tailwater

Similar words to headwater

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

source
headstream
headspring
fountainhead
wellspring
See all synonyms of headwater

• Nearby Words

headship
headstone
headstrong
headwater
headwaters
headway
headwind

Cite this Entry

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