airtight

American  

[air-tahyt] / ˈɛərˌtaɪt /

adjective

1. preventing the entrance or escape of air or gas.

2. having no weak points or openings of which an opponent may take advantage.

   an airtight contract.

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airtight British  

/ ˈɛəˌtaɪt /

adjective

1. not permitting the passage of air either in or out

2. having no weak points; rigid or unassailable

   this categorization is hardly airtight

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Other Word Forms

• airtightly adverb
• airtightness noun

Etymology

Origin of airtight

First recorded in 1750–60; air ¹ + tight

Example Sentences

Those underdogs tend to follow a simple recipe—they have one or two elite skills, like 3-point shooting or an airtight zone defense, that can tilt a seeming mismatch in their favor.

From The Wall Street Journal

Andrew Crawford, of US non-profit the Center for Democracy and Technology, said it was "crucial" to maintain "airtight" safeguards around users' health information.

From BBC

Also read: Your estate plan needs to be absolutely airtight.

From MarketWatch

Store the cookies in an airtight container at room temperature for up to 5 days.

From Salon

More: Your estate plan needs to be absolutely airtight.

From MarketWatch

Related Words

• indisputable
• invulnerable
• irrefutable
• unassailable