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Definitions

nuclear

[noo-klee-er, nyoo-, -kyuh-ler] / ˈnu kli ər, ˈnyu-, -kyə lər /
ADJECTIVE
central
Synonyms
STRONGEST
basic essential fundamental important key paramount pivotal significant
STRONG
cardinal center chief dominant interior intermediate leading master mean median middle midway primary prime radical ruling salient umbilical
WEAK
axial centric centroidal equidistant focal foremost inmost inner mid middlemost midmost omphalic outstanding overriding predominant
Antonyms
STRONGEST
additional auxiliary extra inessential insignificant minor nonessential secondary trivial unimportant unsubstantial
STRONG
exterior extreme inferior outer outside subordinate
WEAK
peripheral
ADJECTIVE
inner
Synonyms
WEAK
close constitutional essential familiar focal inherent innermore inside interior internal intestinal intimate intrinsic inward
Antonyms
WEAK
exterior external outer outside physical
ADJECTIVE
organic
Synonyms
STRONGEST
biological
STRONG
anatomical constitutional essential fundamental integral living necessary original primary prime primitive principal
WEAK
amoebic animate basal biotic cellular elemental inherent innate live plasmic structural vital
Antonyms
STRONG
accessory auxiliary extra inessential minor secondary trivial unimportant unnecessary
WEAK
inorganic man-made unnatural

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.

Missing nuclear official becomes 10th tied to U.S. secrets.

From MarketWatch • Apr. 15, 2026

These nuclear activities and the weapons materials they could produce can bring nations to the brink of building bombs.

From The Wall Street Journal • Apr. 14, 2026

Within 60 days, the White House is directing the Energy Department to provide an assessment on the readiness of the U.S. nuclear reactor industrial base to produce “up to four space reactors within five years.”

From Barron's • Apr. 14, 2026

Iran does not have nuclear weapons, and the UK government has said there is "no assessment" that Iran was trying to target Europe with missiles.

From BBC • Apr. 14, 2026

Then Katherine complained, “That’s a stupid comparison. A nuclear explosion in Kansas City would kill all the stolen babies, too.”

From "Found" by Margaret Peterson Haddix

Vocabulary lists containing nuclear

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