Synonyms of watertight in English:

watertight

adjective

  • 1 a watertight container
    [Antonyms] leaky
  • 2 Sam had arranged a watertight alibi
    [Antonyms] flawed
  • Definition of watertight in:

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    Word of the day hypnopompic
    Pronunciation: ˌhɪpnə(ʊ)ˈpɒmpɪk
    adjective
    relating to the state immediately preceding waking up