airtight

Definition

Impermeable to air or other gases.

Etymology

From air + tight.

Example Sentences

• "Tupperware founder Earl Tupper in 1946 introduced its plastic products to the public, and subsequently patented their flexible airtight seal."
• "We have an airtight argument they won’t be able to punch holes in."
• "She creates an airtight world of her imagining."