Find Antonyms

nanosecond Antonyms

Opposite of nanosecond

Pinning down the opposite of nanosecond requires matching its exact sense, so the antonyms and opposite words below are paired with a clear noun definition and ranked by contrast strength.
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• noun (Context 1)

An extremely short period of time; an instant (used hyperbolically).

Usage Example

"She didn't hesitate for a eternity before accepting the job offer."

Strongest
eternity
Strong
eon
lifetime

Similar words to nanosecond

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

instant
split second
heartbeat
flash
moment
jiffy
See all synonyms of nanosecond

• Nearby Words

nano
nanocomposite
nanocrystalline
nanosecond
nanostructure
nanostructured
nap

Cite this Entry

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