AIRTIGHT

airtight, air-tight, gas-tight

(adjective) not allowing air or gas to pass in or out

airtight, air-tight

(adjective) having no weak points; “an airtight defense”; “an airtight argument”

Source: WordNet® 3.1

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Etymology

Adjective

airtight (comparative more airtight, superlative most airtight)

Impermeable to air or other gases.

(figuratively) Having no weak points or flaws.

(figuratively, of a person) Highly reserved in some matter, particularly tight-lipped or tight-fisted.

Synonyms

• (impermeable to air): hermetic

Antonyms

• breathable

• transpirable

Source: Wiktionary

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Air"-tight`, a.

Definition: So tight as to be impermeable to air; as, an air-tight cylinder.

Air"-tight`, n.

Definition: A stove the draft of which can be almost entirely shut off. [Colloq. U. S.]

Source: Webster’s Unabridged Dictionary 1913 Edition

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