Standard Lemma guide

deepness

noun · 5 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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  • UK: /ˈdiːpnəs/
  • US: Recorded audio is listed in the source snapshot.
  • rhymes with -iːpnəs

1

noun

Meaning 1

The state or quality of being deep (either physically or metaphorically)

Definition source: English Wiktionary via Wiktextract

Usage: uncountable, usually

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: depth, profoundness, profundity

Antonyms: shallowness

2

noun

Meaning 2

a low pitch that is loud and voluminous

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: low pitch, low frequency

3

noun

Meaning 3

the extent downward or backward or inward

Definition source: Princeton WordNet 3.0

Examples

  • the depth of the water
  • depth of a shelf
  • depth of a closet

Meaning relationships

Synonyms: depth

Antonyms: none provided

Broader terms: extent

Narrower terms: deepness, profundity, profoundness, draft, draught, penetration, sounding, shallowness

4

noun

Meaning 4

the quality of being physically deep

Definition source: Princeton WordNet 3.0

Examples

  • the profundity of the mine was almost a mile

Meaning relationships

Synonyms: profundity, profoundness

Antonyms: shallowness

Broader terms: depth, deepness

Narrower terms: bottomlessness

5

noun

Meaning 5

the intellectual ability to penetrate deeply into ideas

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: astuteness, profundity, profoundness, depth

Antonyms: none provided

Broader terms: wisdom, sapience

History

Etymology

From Middle English depnesse, from Old English dēopnes (“deepness; depth; an abyss”), from Proto-West Germanic *deupnassī, equivalent to deep + -ness. Cognate with German Low German Deepnis (“deepness, depth”).