The meaning of WATERTIGHT is of such tight construction or fit as to be impermeable to water except when under sufficient pressure to produce structural discontinuity.

If a soccer team has a watertight defense, it stops an opponent from scoring a goal. : Rovers' defense will need to be watertight in their Carling Cup clash with Watford.

Something that is watertight does not allow water to pass through it, for example because it is tightly sealed. The flask is completely watertight, even when laid on its side. The batteries are …

1. So tightly made that water cannot enter or escape. 2. Having no flaws or loopholes; impossible to fault, refute, or evade: a watertight alibi; a watertight contract.

Waterproofing conducted on the exterior of a freeway tunnel Waterproofing is the process of making an object, person or structure waterproof or water-resistant so that it remains relatively …

Definition of watertight adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

WATERTIGHT definition: constructed or fitted so tightly as to be impervious to water. See examples of watertight used in a sentence.

Dec 21, 2025 · watertight (comparative more watertight, superlative most watertight) What a day, eh? Demmy, it's like the commencement of the rainy season in Bengal. But you'll find my …

wa•ter•tight (wô′ tər tīt′, wot′ ər-), adj. constructed or fitted so tightly as to be impervious to water: The ship had six watertight compartments. so devised or planned as to be impossible to …

WATERTIGHT meaning: 1 : put or fit together so tightly that water cannot enter or pass through; 2 : too strong or effective to fail or to be defeated