adj. 1 sealed, waterproof The escape hatch has been made watertight 2 unassailable, impregnable, solid, airtight, flawless, faultless, incontrovertible; without loopholes Landry has a watertight alibi for the night of the crime
WATERTIGHT
Meaning of WATERTIGHT in English
Oxford thesaurus English vocab. Английский словарь Оксфорд тезаурус. 2012