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Definitions

deep down





ADVERB
internally
Synonyms
ADVERB
inwardly
Synonyms
Antonyms


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.

The next revolution in physics may not take us faster than light — but it could reveal that time, deep down in the microscopic world and in a bouncing universe, flows both ways.

From Science Daily • May 22, 2026

"It was very late at night and I was very deep down the mountain," she said.

From BBC • May 20, 2026

He tries to comfort himself with the idea that he stayed true to useful ideals—“At least I got a soul still, even if I’m in a bad placе”—but deep down he’s not so sure.

From The Wall Street Journal • Apr. 28, 2026

Maybe it was the underbelly of all of the bravado and power-seeking—some desire to counter all the validation with the humiliation of knowing that, deep down, he’s just a revolting little worm.

From Slate • Apr. 15, 2026

The implication is that deep down they were alchemists, they were just not prepared to admit it.

From "The Invention of Science" by David Wootton




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