airtight
adjective
air·tight
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Definition of airtight
1
: impermeable to air or nearly so
an airtight seal
2a
: having no noticeable weakness, flaw, or loophole
an airtight argument
b
: permitting no opportunity for an opponent to score
an airtight defense
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Examples of airtight in a Sentence
Store the food in an airtight container.
The defendant had an airtight alibi.
Recent Examples on the Web
Make Ahead: The baked cake can be stored in an airtight container at room temperature for up to 3 days. — Becky Krystal, The Denver Post, "With their powers combined, strawberries, pistachios and olive oil make for one splendid cake," 4 Sep. 2019 Remove chocolate from the molds and place in an airtight container. — San Diego Union-Tribune, "Gift for cooking experiments brings County Fair ribbons galore," 3 Sep. 2019 Make Ahead: The pasta salad can be refrigerated in an airtight container for up to 3 days. — Los Angeles Times, "The only pasta salad recipe you’ll ever need," 31 Aug. 2019 The simple syrup can be refrigerated in an airtight container for up to 6 months. — M. Carrie Allan, Twin Cities, "No alcohol, no problem: How to make complex, balanced zero-proof cocktails," 19 Aug. 2019 Transfer to an airtight, non-aluminum container and chill for several hours. — Denise Drower Swidey, BostonGlobe.com, "Healthy hacks and 2 recipes to help keep your good eating habits on track," 20 Aug. 2019 The simple syrup can be refrigerated in an airtight container for up to 6 months. — M. Carrie Allan, Twin Cities, "No alcohol, no problem: How to make complex, balanced zero-proof cocktails," 19 Aug. 2019 The simple syrup can be refrigerated in an airtight container for up to 6 months. — M. Carrie Allan, Washington Post, "No alcohol, no problem: How to make complex, balanced zero-proof cocktails," 14 Aug. 2019 Store in an airtight container in the fridge for up to 2 weeks. — Dallas News, "3 Indian sweets with a twist from our favorite new cookbook 'Milk & Cardamom'," 12 Aug. 2019These example sentences are selected automatically from various online news sources to reflect current usage of the word 'airtight.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
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More Definitions for airtight
airtight
adjective
English Language Learners Definition of airtight
: tightly sealed so that no air can get in or out
: too strong or effective to fail or to be defeated
See the full definition for airtight in the English Language Learners Dictionary
airtight
adjective
air·tight
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Kids Definition of airtight
: so tightly sealed that no air can get in or out
Store the cookies in an airtight container.