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radioactive Synonyms

Another word for radioactive

Choosing another word for radioactive depends on context, so the synonyms and similar words below are separated across 2 exact definitions and ranked by match strength.
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• adjective (Context 1)

Emitting or relating to the emission of ionizing radiation or subatomic particles caused by the spontaneous disintegration of atomic nuclei.

Usage Example

"Technicians wore specialized protective suits before handling the nuclear waste at the facility."

Strong
nuclear
Weak
irradiated

• adjective (Context 2)

So controversial, tainted, or politically dangerous that people avoid any association with it.

Usage Example

"After the financial scandal broke, the disgraced executive became politically toxic to his former allies."

Strongest
toxic
Strong
poisonous
controversial
taboo

Opposites of radioactive

The opposite of radioactive shifts depending on context. Common opposites include:

nonradioactive
uncontroversial
stable
safe
harmless
See all opposites of radioactive

• Nearby Words

radicalness
radicchio
radio
radioactive
radioactivity
radiobroadcaster
radiogram

Cite this Entry

Wordmom. (2026). Synonyms for Radioactive. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/synonyms/radioactive
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