Definition of watertight in English:

Share this entry


Pronunciation: /ˈwɔːtətʌɪt/


1Closely sealed, fastened, or fitted so that no water enters or passes through: a watertight compartment
More example sentences
  • When the sections compress the rubber, this should form a watertight seal.
  • The watertight seals over structural joints tend to deteriorate over time as the caulking becomes less sticky and dislodges.
  • Because of the freeze-and-thaw cycle, concrete dikes tend to require annual maintenance to seal cracks and remain watertight.
2(Of an argument or account) unable to be disputed or questioned: their alibis are watertight
More example sentences
  • At least I've finally found a watertight argument against Alec ever moving me to the countryside.
  • That argument is not watertight, however, because existing law does not formally allow euthanasia, for a variety of reasons mentioned briefly above.
  • I will lay it on the line - there is not one such fossil for which one could make a watertight argument.

For editors and proofreaders

Line breaks: water|tight

Share this entry

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.