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.

“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

Sarabia brought the curtain down on his playing career aged just 24, knowing deep down he could not reach the heights he had hoped to.

From BBC • Oct. 31, 2025

They feel joy at real and recent triumphs, but deep down are rightly anxious about the world.

From The Wall Street Journal • Oct. 23, 2025

And even though, deep down, I know it can’t be her—that it can never be her again—it doesn’t stop me from hoping.

From "How to Disappear Completely" by Ali Standish

deep down

Example Sentences

Related Words