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Definitions

unnatural

[uhn-nach-er-uhl, -nach-ruhl] / ʌnˈnætʃ ər əl, -ˈnætʃ rəl /
ADJECTIVE
not regular; artificial
Synonyms
STRONGEST
abnormal bizarre incredible odd outlandish outrageous perverse preposterous stilted strange unusual
STRONG
affected
WEAK
aberrant anomalous assumed concocted contrary contrived ersatz extraordinary fabricated factitious false feigned forced freakish freaky imitation insincere irregular labored made-up make believe perverted phony pseudo put on staged stiff strained studied supernatural synthetic theatrical unaccountable uncanny unconforming unorthodox
Antonyms
STRONGEST
common familiar normal reasonable regular sensible standard usual
WEAK
acceptable genuine natural real

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.

Designed to lower auto emissions by temporarily shutting off the engine while the brake is engaged, it also makes driving feel unnatural, jerky and unenjoyable, Donio and his fellow stop-start haters argue.

From The Wall Street Journal • Apr. 3, 2026

"It is an unnatural history museum," he said.

From BBC • Mar. 12, 2026

But it felt gross and unnatural to ask for cash.

From Slate • Feb. 19, 2026

Still, it would be hard to object to anyone pursuing initiatives to get unnatural additives out of the food supply or trying to ensure that the country is eating well.

From Salon • Feb. 19, 2026

“But I am thought to be unnatural in this respect.”

From "Gregor the Overlander" by Suzanne Collins