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indubitable

indubitable

1 8.7
Completely certain and clearly true
  • adjective
  • /ɪnˈduːbɪtəbl/
  • Formal
: indudable
  • It is indubitable that climate change is affecting weather patterns around the world.
  • indubitable truth

Examples

  • Third, emotions are fallible, whereas feelings are indubitable.

    Academic text (2003)
  • The polls are indubitable.

    Blog text (2)
  • Intuition is the indubitable conception of a clear and attentive mind that proceeds solely from the light of reason.

    Academic text (2017)
  • Arguably, this is because the notion of the global (and of the corresponding digital) is now omnipresent and indubitable.

    Academic text (2016)
  • In the face of unbearable skepticism, Descartes discovered an indubitable and self-evident truth, namely that he exists, because he cannot doubt and not exist simultaneously.

    Academic text (2003)
  • That ethnographic Finno-Ugric, Siberian, and American Subarctic shamanism are historically related seems indubitable.

    Academic text (1996)
  • Her talent for singing is indubitable, as she has won several prestigious competitions.

  • The evidence presented in court was indubitable, leaving no room for doubt about his guilt.

Synonyms

certain
vsindubitable
286 1.0

Sure to happen or be true

emphasizes lack of doubt rather than a guaranteed future result
beyond doubt
vsindubitable
74 2.8

Completely certain with no possible reason to think it is wrong

is the concise adjective form conveying identical sureness
beyond a doubt
vsindubitable
55 3.0

Completely sure with no chance of being wrong

is a single adjective used to state the same sureness
undeniable
vsindubitable
51 4.2

So clear that people cannot doubt it

is sure even when not immediately obvious
irrefutable
vsindubitable
21 7.8

Impossible to deny or prove wrong

is used to show plain sureness rather than formal proof focus
indisputable
vsindubitable
21 5.7

You cannot doubt it because it is clearly true

is sure without stressing clear visible proof
incontrovertible
vsindubitable
  • Formal
10 8.2

Clearly true and impossible to doubt

is about lack of doubt rather than argument outcomes
unassailable
vsindubitable
10 8.0

So strong that no one can attack, defeat, or prove it wrong

is about lack of doubt rather than physical or rhetorical invulnerability
unquestionable
vsindubitable
8 4.1

Clearly true so no one can doubt it

is the neutral adjective for stating lack of doubt
unimpeachable
vsindubitable
  • Formal
7 8.2

Very honest and reliable so people cannot doubt it

is used for plain factual sureness rather than moral trustworthiness
unshakable
vsindubitable
  • US
2 4.8

Very strong belief or feeling that cannot be changed

describes being free of doubt rather than lasting firmness
inarguable
vsindubitable
2 6.7

Impossible to deny or argue with

is a broader term for lack of doubt, not debate closure
incontestable
vsindubitable
  • Formal
2 7.5

People cannot doubt it because it is clearly true

refers to being free from doubt rather than contest outcome
unarguable
vsindubitable
1 5.9

Impossible to disagree with because the facts are clear

is about being free of doubt rather than merely ending debate
unchallengeable
vsindubitable
1 7.2

So certain that no one can doubt it

focuses on being free of doubt rather than resistance to attack
undisputable
vsindubitable
1 4.7

Certain and impossible to doubt

expresses the same basic sureness without debate focus
undoubtable
vsindubitable
1 6.8

Certain and clearly true

is the general term for having no doubt
incontestible
vsindubitable
  • UK
1 8.4

Impossible to argue against because the facts are clear

expresses being impossible to doubt in general use, not contest emphasis
irrefragable
vsindubitable
  • Archaic
1 9.9

Impossible to prove wrong

is used for simple lack of doubt rather than technical refutation
inexpugnable
vsindubitable
1 9.9

No one can beat or prove it wrong

is a term for simple lack of doubt, not invincibility

Antonyms

162 3.9

Probably not true or trustworthy

54 3.0

Not likely to be true or real

How Certain

indubitable
  • Formal
1 8.7
certain
286 1.0
probable
159 3.4
possible
∞ 1.0

Surface Forms

indubitable positive

Morphology

indubitable = dubitable (semi-transparent) = in + dubit + able

For a learner who knows 'dubitable', adding the negative prefix 'in-' gives the straightforward meaning 'not open to doubt'.

Etymology

Indubitable comes from the Latin parts in- 'not' and dubitare 'to doubt', and it is like the English word doubt. So, something indubitable is 'not to be doubted' and is therefore certain and unquestionable.