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crystal clear

crystal clear

5 3.1
Completely see-through so you can easily see inside
  • adjective
  • /ˈkrɪstl klɪr/
translation icon : cristalino
  • The water in the lake is crystal clear, making it easy to see the fish swimming beneath the surface.
  • crystal clear water

Their shades have durable frames and crystal clear optics, making them the perfect choice.

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Examples

  • Luscious green grass and crystal clear lakes surround many of the homes.

    Fiction book (1990)
  • The photographs themselves are crystal clear.

  • The water there is crystal clear.

  • The sky was crystal clear and the air was very dry.

    Academic text (2007)
  • This tank is crystal clear right now, but soon it will be black full of fish.

  • The forest was lush, the river ran crystal clear.

  • The rivers flow crystal clear, so clear you can pluck the salmon out with your bare hands.

    Fiction book (1991)
  • I eased into the crystal-clear water until I was waist-deep and slowly moved forward.

    Fiction book (2002)
  • Furthermore, it features warm, crystal-clear water, perfect for scuba diving and submarine hunting.

    Blog text (18)
  • The night was crystal clear with a bright, gibbous moon poking in and out amid scudding clouds.

    Fiction book (1999)

Synonyms

clear
vscrystal clear
866 1.0

Free from things that block sight or movement

is more specific to perfect see-through light passage and visual clarity
transparent
vscrystal clear
54 3.2

Clear enough to see things behind it, like glass

is focused on perfect visual clarity rather than general cleanliness
see-through
vscrystal clear
14 3.9

Thin material that lets you see what is behind it

is broader, applying to many materials and perfect light passage
crystalline
vscrystal clear
5 6.3

Very clear and see-through so you can see fine details

is the everyday visual phrase rather than poetic or figurative usage
limpid
vscrystal clear
1 7.4

Very clear and easy to see through like clean water

is used broadly for total visual transparency beyond liquids
lucid
vscrystal clear
1 4.8

Clear like water or glass so you can see through it

is more literal visual phrasing rather than mental or verbal clarity
pellucid
vscrystal clear
1 9.9

Very clear water or glass that lets you see objects behind it

is a vivid expression stressing flawless glasslike visual quality
hyaline
vscrystal clear
1 9.9

Clear and see-through like glass

is common everyday wording not specialized anatomical or scientific term
as pellucid as crystal
vscrystal clear
  • Literature
8.6

Very clear and easy to understand

is a common phrase denoting flawless see-through clarity
crystallin
vscrystal clear
  • Archaic
9.9

Very clear and bright like a piece of glass

is modern common expression rather than old or literary wording

Antonyms

51 1.0

Sky covered with clouds so it is not sunny

21 6.6

Not letting light pass so you cannot see through it

How Clear

crystal clear
5 3.1
clear
866 1.0
cloudy
51 1.0
hazy
49 3.9
blurred
2 3.4

Surface Forms

crystal clear positive

Morphology

crystal + clear

The meaning 'extremely obvious or perfectly clear' is directly derived from combining 'crystal' (a highly transparent substance) with 'clear' (visible/unobstructed or understandable), so the phrase's image straightforwardly intensifies clarity. This compositional adjectival intensification is cross-linguistically common, making it predictable for a B1 learner who knows both constituents.

Etymology

Crystal clear comes from the image of a bright, perfect crystal, like a glass you can see through, where light passes and you can see everything under it. That's why it means 'completely transparent' and easy to see through.