View synonyms for deep

deep

[ deep ]

Phonetic (Standard)IPA

adjective

, deep·er, deep·est.

extending far down from the top or surface:
a deep well;
a deep valley.
Antonyms: shallow
extending far in or back from the front or from an edge, surface, opening, etc., considered as the front:
a deep shelf.
extending far in width; broad:
deep lace;
a deep border.
ranging far from the earth and sun:
a deep space probe.
having a specified dimension in depth:
a tank 8 feet deep.
covered or immersed to a specified depth (often used in combination):
standing knee-deep in water.
having a specified width or number of items from front to back (often used in combination):
shelves that are 10 inches deep;
cars lined up at the entrance gates three-deep.
extending or cutting far down relative to the surface of a given object:
The knife made a deep scar in the table.
situated far down, in, or back:
deep below the surface;
deep in the woods.
reaching or advancing far down:
a deep dive.
Antonyms: shallow
coming from far down:
a deep breath.
made with the body bent or lowered to a considerable degree:
a deep bow.
immersed or submerged in or heavily covered with (followed by in ):
a road deep in mud.
difficult to penetrate or understand; abstruse:
a deep allegory.
Synonyms: obscure, mysterious, recondite
not superficial; profound:
deep thoughts.
grave or serious:
deep disgrace.
heartfelt; sincere:
deep affections.
absorbing; engrossing:
deep study.
great in measure; intense; extreme:
deep sorrow.
sound and heavy:
deep sleep.
(of colors) dark and vivid:
a deep red.
low in pitch, as sound, a voice, or the like:
deep, sonorous tones.
having penetrating intellectual powers:
a deep scholar.
Synonyms: sagacious, shrewd, intelligent, wise
profoundly cunning or artful:
a deep and crafty scheme.
mysterious; obscure:
deep, dark secrets.
immersed or involved; enveloped:
a man deep in debt.
absorbed; engrossed:
deep in thought.
Baseball. relatively far from home plate:
He hit the ball into deep center field.
Linguistics. belonging to an early stage in the transformational derivation of a sentence; belonging to the deep structure.

noun

the deep part of a body of water, especially an area of the ocean floor having a depth greater than 18,000 feet (5,400 meters).
a vast extent, as of space or time.
the part of greatest intensity, as of winter.
Nautical. any of the unmarked levels, one fathom apart, on a deep-sea lead line. Compare mark ¹( def 20 ).
the deep, Chiefly Literary. the sea or ocean:
He was laid to rest in the deep.

adverb

, deep·er, deep·est.

to or at a considerable or specified depth:
The boat rode deep in the water.
far on in time:
He claimed he could see deep into the future.
profoundly; intensely.
Baseball. at or to a deep place or position:
The outfielders played deep, knowing the batter's reputation as a slugger.

deep

/ diːp /

adjective

extending or situated relatively far down from a surface
a deep pool
extending or situated relatively far inwards, backwards, or sideways
a deep border of trees
cricket relatively far from the pitch
the deep field
deep third man
1. postpositive of a specified dimension downwards, inwards, or backwards
  six feet deep
2. ( in combination )
  a six-foot-deep trench
coming from or penetrating to a great depth
a deep breath
difficult to understand or penetrate; abstruse
learned or intellectually demanding
a deep discussion
of great intensity; extreme
deep happiness
deep trouble
postpositivefoll byin absorbed or enveloped (by); engrossed or immersed (in)
deep in debt
deep in study
very cunning or crafty; devious
a deep plot
mysterious or obscure
a deep secret
(of a colour) having an intense or dark hue
low in pitch or tone
a deep voice
go off the deep end informal.
1. to lose one's temper; react angrily
2. to act rashly
in deep water
in a tricky position or in trouble
throw someone in at the deep end
See end 1

noun

any deep place on land or under water, esp below 6000 metres (3000 fathoms)
the deep
1. a poetic term for the ocean
2. cricket the area of the field relatively far from the pitch
the most profound, intense, or central part
the deep of winter
a vast extent, as of space or time
nautical one of the intervals on a sounding lead, one fathom apart

adverb

far on in time; late
they worked deep into the night
profoundly or intensely
deep down informal.
in reality, esp as opposed to appearance
she is a very kind person deep down
deep in the past
long ago

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Derived Forms

ˈdeeply, adverb
ˈdeepness, noun

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Other Words From

deep·ness noun
non·deep adjective
o·ver·deep adjective
un·deep adjective
un·deep·ly adverb

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Word History and Origins

Origin of deep¹

First recorded before 900; Middle English dep, Old English dēop; akin to Gothic diups, Old Norse djupr, Dutch diep, Old High German tiof; akin to dip ¹( def ), dive ( def )

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Word History and Origins

Origin of deep¹

Old English dēop; related to Old High German tiof deep, Old Norse djupr

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Idioms and Phrases

Idioms

go off the deep end,
1. to enter upon a course of action with heedless or irresponsible indifference to consequences.
2. to become emotionally overwrought.
in deep water,
1. in difficult or serious circumstances; in trouble.
2. in a situation beyond the range of one's capability or skill:
  You're a good student, but you'll be in deep water in medical school.
in deep,
1. inextricably involved.
2. having made or committed oneself to make a large financial investment.

More idioms and phrases containing deep

beauty is only skin deep
between a rock and a hard place (devil and deep blue sea)
go off the deep end
in deep
still waters run deep

Related Words

ocean

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

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