Find Antonyms
airtightness Antonyms
Opposite of airtightness
Because the opposite of airtightness shifts with each meaning, the antonyms and opposite words below are separated across 2 exact definitions and ranked by contrast strength.
• noun (Context 1)
The state or quality of being completely sealed so that no air or gas can enter or escape.
Usage Example
"The engineers tested the permeability of the newly constructed building to maximize its energy efficiency."
Strongest
permeability
Strong
porosity
leakiness
• noun (Context 2)
The quality of having no weak points, loopholes, or flaws (such as an argument, alibi, or legal contract).
Usage Example
"The defense attorney was confident in the fallibility of the suspect's alibi."
Strong
fallibility
vulnerability
Similar words to airtightness
Words similar to airtightness shift depending on context. Common synonyms include:
impermeability
soundness
infallibility
Cite this Entry
Wordmom. (2026). Antonyms for Airtightness. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/antonyms/airtightness