deep down

ADJECTIVE

deep-seated

Synonyms

STRONGEST

built-in chronic deep-rooted inbred inherent longstanding

WEAK

confirmed deep-down deeply felt dyed-in-the-wool established fixed habitual inborn lodged in one's brain longtime subconscious

Antonyms

STRONGEST

added temporary

ADJECTIVE

dyed-in-the-wool

Synonyms

WEAK

absolute complete confirmed congenital deep-down deep-dyed deep-rooted deep-seated deeply ingrained die-hard entrenched fixed full-fledged genuine hardened infixed ingrained instilled long-standing out and out thorough thoroughgoing through-and-through to the core true unchangeable uncompromising utter well-established

ADVERB

at heart

Synonyms

WEAK

at bottom basically fundamentally in essence in spite of appearance inside

ADVERB

internally

Synonyms

STRONGEST

inside

STRONG

within

WEAK

inwardly mentally privately

ADVERB

inwardly

Synonyms

STRONGEST

internally within

STRONG

at heart privately secretly

WEAK

mentally

Antonyms

WEAK

outwardly

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.

“Beijing knows deep down that this isn’t about China at all,” said Jeremy Chan of the political-risk consulting firm Eurasia Group.

From The Wall Street Journal • Mar. 18, 2026

Do I deep down want to go there?

From BBC • Jan. 21, 2026

“His take on guitar chords and comping is so original, it’s almost too original to be fully appreciated until you get deep down into what he’s doing. I think he’s invented his own vocabulary.”

From The Wall Street Journal • Jan. 11, 2026

Amanda was troubled by what she saw, but she didn’t believe these were hateful boys, deep down.

From Slate • Dec. 5, 2025

The wagon wheels went deep down in it and the horses pulled and sweated.

From "Little House in the Big Woods" by Laura Ingalls Wilder

deep down

Example Sentences

Related Words