watertight

adjective wa·ter·tight \ ˌwȯ-tər-ˈtīt , ˌwä- \

Definition of watertight

1 :of such tight construction or fit as to be impermeable to water except when under sufficient pressure to produce structural discontinuity
2 :leaving no possibility of misconstruction or evasion
  • a watertight lease

watertightness

noun

Examples of watertight in a Sentence

  1. The doors are all watertight.

  2. The evidence against the defendant was watertight.

Recent Examples of watertight from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'watertight.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of watertight

15th century


WATERTIGHT Defined for English Language Learners

watertight

adjective

Definition of watertight for English Language Learners

  • : put or fit together so tightly that water cannot enter or pass through

  • : too strong or effective to fail or to be defeated


WATERTIGHT Defined for Kids

watertight

adjective wa·ter·tight \ ˌwȯ-tər-ˈtīt , ˌwä- \

Definition of watertight for Students

:so tight as to be waterproof
  • The pipe's joints are watertight.


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