Skip to main content
mysterious

mysterious

498 5.1
Hard to understand or explain because it seems strange
  • adjective
  • /mɪˈstɪəriəs/
translation icon : misterioso
  • For Denny, this latest trial explained much that had previously seemed mysterious or improbable.
  • in mysterious ways
  • appear mysterious
  • remain mysterious

And yet it remains one of the most mysterious things in our world.

Autoplay Next

Examples

  • Her mysterious smile left everyone wondering what thoughts were hidden behind it.

  • And yet it remains one of the most mysterious things in our world.

  • So it's still a bit mysterious to me how this could work.

  • We have got some mysterious object here.

  • The Lord works in mysterious ways.

  • But would you look at that mysterious smile?

  • The ancient chants you heard came from this mysterious object.

  • Beyond lies a dangerous, mysterious realm into which no one ventures.

  • I couldn't wait to experience this mysterious tribal monument for myself.

  • We know that preK-12 students learn and develop in mysterious and idiosyncratic ways.

    Academic text (2013)

Synonyms

strange
vsmysterious
2.3

Unusual and slightly odd in a way you cannot easily understand

implies a stronger, more puzzling obscurity rather than mere oddness
weird
vsmysterious
  • Informal
3.2

Strange or unusual in a way that makes people feel uncomfortable

is about being puzzling without necessarily being odd or surprising
deep
vsmysterious
583 7.6

Hard to understand or explain

is mainly puzzling without stressing depth or intellectual effort
secret
vsmysterious
125 6.3

Hard to understand or explain

is about general difficulty to understand rather than hidden status
unexplained
vsmysterious
62 4.8

No one knows the cause

describes unclear cases that sometimes later get a known cause
elusive
vsmysterious
52 7.0

Hard to understand or describe, like the meaning of a symbol

describes difficulty to understand but can be more directly obscure
inexplicable
vsmysterious
47 7.8

Hard to explain or understand

is difficult to understand but may admit partial explanation
cryptic
vsmysterious
43 8.1

Hard to understand because it seems secret or mysterious

is about being hard to understand without implying hidden code
puzzling
vsmysterious
42 4.6

Hard to understand or explain

is more generally hard to explain but usually less actively confusing
occult
vsmysterious
35 9.0

Hidden from view and not easy to see

is about general puzzling quality rather than secret or ritual hiddenness
mind-boggling
vsmysterious
  • Informal
31 7.0

Very surprising or hard to understand

is similarly puzzling but less focused on strong surprise
obscure
vsmysterious
28 8.2

Hard to understand because it is unclear or complex

is harder to understand because it often puzzles or defies sense
enigmatic
vsmysterious
27 8.1

Hard to understand and often seems mysterious

is hard to understand but can be less absolutely unknowable
baffling
vsmysterious
27 6.4

Hard to understand and causing confusion

is about being hard to grasp but may feel less impossibly confusing
unfathomable
vsmysterious
23 8.6

Very hard to understand or measure how deep something is

means hard to understand but may not be endlessly deep
unexplainable
vsmysterious
19 7.0

Something people cannot understand or find a clear reason for

covers puzzling cases that sometimes have possible causes
inscrutable
vsmysterious
12 8.9

Hard to understand because it shows no clear meaning or feeling

describes difficulty of understanding but can allow some explanation
mystifying
vsmysterious
7 7.3

Causing someone to feel confused

is about general obscurity rather than actively causing confusion
shrouded in mystery
vsmysterious
4 7.7

Hidden and hard to understand because it is secret

relates to difficulty of understanding without implying deliberate hiding
enigmatical
vsmysterious
1 9.3

Hard to understand, like a puzzle

is generally hard to understand but may be less formal
unfathomed
vsmysterious
1 9.9

Too deep or mysterious to understand

is hard to grasp but not focused on physical or measured depth
cryptical
vsmysterious
  • Archaic
9.9

Hard to understand because it has a hidden meaning

points to puzzling quality without stressing deliberate concealment
umbrous
vsmysterious
  • Archaic
9.9

Hard to understand because it is mysterious and unclear

is broadly hard to understand but less focused on shadowy tone
orphic
vsmysterious
  • Literature
9.9

Mysterious and hard to understand, often about deep spiritual ideas

is puzzling in general rather than specially esoteric or symbolic
mysterial
vsmysterious
  • Archaic
9.9

Strange and hard to understand, giving a feeling of mystery

covers the same puzzlement but without the expressive or theatrical tone
sibylline
vsmysterious
  • Literature
9.9

Mysterious and hard to understand, like a prophecy

is puzzling without the prophetic or symbolic sense

Antonyms

1.0

Easy to understand and not confusing

1.0

Easy to understand or do

1.0

Easy to see or understand

How Mysterious

inexplicable
47 7.8
enigmatic
27 8.1
mysterious
498 5.1
strange
2.3

Surface Forms

mysterious positive
mysteriously comparative
mysteriousness superlative

Morphology

mysterious = mystery (transparent) = mystery + ous

The adjective is a regular adjectival formation from the noun 'mystery' with the productive suffix '-ous', so its meaning is directly predictable from the base word.

Etymology

Mysterious is related to the word mystery, which originally meant 'secret'. So, a mysterious thing is one that seems to keep its secret and is hard to understand.