Thesaurus.com
Dictionary.com
Definitions

radioactive

[rey-dee-oh-ak-tiv] / ˌreɪ di oʊˈæk tɪv /
ADJECTIVE
active
Synonyms


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Tracks such as "Believer", "Thunder" and "Radioactive" have made the band one of the most popular pop rock groups worldwide.

From Barron's • Apr. 12, 2026

"Radioactive waste from production absolutely requires safe, compliant, permanent disposal. Currently all disposal facilities in EU are temporary," says Mr Kruemmer.

From BBC • Apr. 16, 2025

Radioactive water spilled from spent fuel cooling pools and cracks appeared on the ground, but no radiation leaked outside, operator Hokuriku Electric Power Co. said.

From Seattle Times • Feb. 2, 2024

Radioactive isotopes of the salt ions calcium and sodium allowed the researchers to measure how much and how quickly the animals took up different ions.

From Science Daily • Oct. 6, 2023

Radioactive liquid pools in a depression in the copperized wood, but as I watch, it’s sucked in by the black pitch between the metallic planks.

From "Challenger Deep" by Neal Shusterman



Vocabulary lists containing radioactive


Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember "radioactive" for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com