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airtight

airtight

29 5.9
A very strong argument or plan that has no weak points
  • adjective
  • /ˈɛərtaɪt/
translation icon : irrefutable
  • The lawyer presented an airtight case that convinced the jury of his client's innocence.

Because by rights, it should be the most airtight institution known to man.

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Examples

  • Nelson said it was an airtight case.

    Fiction book (2001)
  • It's an airtight case.

    Fiction book (2001)
  • I would have had an airtight case.

    Fiction book (1999)
  • Because by rights, it should be the most airtight institution known to man.

  • You know that my case is airtight.

  • The logic of this seemed airtight.

    Fiction book (1998)
  • Lange presented an airtight case in favor of the idea.

    Academic text (2001)
  • He'd prepared an airtight case, and even gone over it with Ross several times.

    Fiction book (1994)
  • The alleged perpetrator's got an airtight alibi.

  • His alibi's airtight.

Synonyms

impeccable
vsairtight
59 6.3

Perfect and without any faults in quality or manners

focuses specifically on being impossible to challenge or criticize
foolproof
vsairtight
44 3.9

Very simple and reliable so people cannot use it wrongly

is about being beyond criticism in reasoning rather than design simplicity
infallible
vsairtight
28 7.2

Not able to make mistakes

applies to arguments as flawless rather than to continuous personal correctness
rock solid
vsairtight
  • Informal
27 3.6

Very strong and not likely to fail or be wrong

refers to being logically flawless rather than physically or practically sturdy
bulletproof
vsairtight
21 5.8

Hard to prove wrong

covers flawless reasoning but not only proof against technical attacks
impregnable
vsairtight
10 7.9

Too strong and well protected for anyone to capture or defeat

concerns unbeatable logical support rather than physical or military security
unshakable
vsairtight
  • US
8 4.8

Very strong belief or feeling that cannot be changed

is about being logically unchallengeable rather than merely emotionally steady
unimpeachable
vsairtight
  • Formal
7 8.2

Very honest and reliable so people cannot doubt it

applies to arguments and explanations rather than moral character or trustworthiness
watertight
vsairtight
1 5.1

So strong and complete that people cannot prove it wrong

is the same idea but emphasizes general faultlessness and secure reasoning
weathertight
vsairtight
5.3

So complete and strong that no one can find a flaw

is focused on flawless explanations and arguments rather than general security
unattackable
vsairtight
8.6

Others cannot attack or harm it

is specifically about being impossible to fault or challenge in argumentation

Antonyms

581 4.0

At risk of being harmed, attacked or influenced

182 3.7

Not perfect because of a mistake or problem

Compounds

A set of reasons that cannot be shown wrong

A bag that keeps air from entering or leaving to protect what is inside

How Convincing

irrefutable
22 7.8
airtight
29 5.9
strong
1.0
convincing
195 3.4
plausible
129 7.2
flawed
182 3.7

Surface Forms

airtight positive

Morphology

airtight = air + tight (semi-transparent) = air + tight

The meaning is a figurative extension from being literally sealed against air to being 'sealed' against criticism or attack, so the relation is clear but metaphorical.

Etymology

Airtight comes from putting together air ('air') and tight ('closed'). Think of an argument as a jar sealed so nothing can get in or out—an airtight argument has no gaps and cannot be easily challenged.