different between impermeable vs airtight

English

Etymology

From French imperméable, from Latin imperme?bilis, from im- + perme?bilis (“permeable”).

Adjective

impermeable (comparative more impermeable, superlative most impermeable)

1. Impossible to permeate.
2. Not allowing passage, especially of liquids; waterproof.

Synonyms

• sealed

Antonyms

• permeable

Related terms

Translations

Catalan

Etymology

From Latin imperme?bilis, equivalent to im- +? permeable.

Pronunciation

• (Balearic) IPA^(key): /im.p??.me?a.bl?/
• (Central) IPA^(key): /im.p?r.me?a.bl?/
• (Valencian) IPA^(key): /im.pe?.me?a.ble/

Adjective

impermeable (masculine and feminine plural impermeables)

1. impermeable

   Antonym: permeable

Derived terms

• impermeabilitzar

Related terms

• impermeabilitat

Noun

impermeable m (plural impermeables)

1. raincoat

Further reading

• “impermeable” in Gran Diccionari de la Llengua Catalana, Grup Enciclopèdia Catalana.
• “impermeable” in Diccionari de la llengua catalana, segona edició, Institut d’Estudis Catalans.
• “impermeable” in Gran Diccionari de la Llengua Catalana, Grup Enciclopèdia Catalana.
• “impermeable” in Diccionari normatiu valencià, Acadèmia Valenciana de la Llengua.
• “impermeable” in Diccionari català-valencià-balear, Antoni Maria Alcover and Francesc de Borja Moll, 1962.

Galician

Alternative forms

• impermeábel

Etymology

From Latin imperme?bilis, equivalent to im- +? permeable.

Adjective

impermeable m or f (plural impermeables)

1. impermeable, waterproof

   Antonym: permeable

Noun

impermeable m (plural impermeables)

1. raincoat

Derived terms

• impermeabilidade
• impermeabilizar

Further reading

• “impermeable” in Dicionario da Real Academia Galega, Royal Galician Academy.

Spanish

Etymology

From Latin imperme?bilis, equivalent to im- +? permeable.

Pronunciation

• IPA^(key): /impe?me?able/, [?m.pe?.me?a.??le]

Adjective

impermeable (plural impermeables)

1. impermeable, waterproof

   Antonym: permeable

Noun

impermeable m (plural impermeables)

1. raincoat

Derived terms

• impermeabilidad
• impermeabilizar

Further reading

• “impermeable” in Diccionario de la lengua española, Vigésima tercera edición, Real Academia Española, 2014.

English

Alternative forms

• air-tight
• air tight

Etymology

air +? tight

Adjective

airtight (comparative more airtight, superlative most airtight)

1. Impermeable to air or other gases.
2. (figuratively) Having no weak points or flaws.

   We have an airtight argument they won’t be able to punch holes in.

3. (figuratively, of a person) Highly reserved in some matter, particularly tight-lipped or tight-fisted.
   • 1908, The Plumbers Trade Journal, Plumbers’ Trade Journal Publishing Company, volume 44:

     when Roger asked for $100 to take the preliminary steps to establish his claim, Mike yelled like a Hebrew auctioneer, for he was air-tight and squeezed a dollar until the woman on it yelled.

   • 1915 April, Annals of Iowa, Historical Department of Iowa, series 3, volume 12, page 599:

     He was ‘air-tight,’ close-mouthed, and had but few confidants or intimate friends, but numerous acquaintances.

Synonyms

• (impermeable to air): hermetic

Antonyms

• breathable
• transpirable

Derived terms

• airtighten
• airtightness

Related terms

Translations