Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “watertight”

watertight

adjective uk   /ˈwɔː.tə.taɪt/ us    /ˈwɑː.t̬ɚ-/

watertight adjective (NO WATER)

having no openings to allow water to get in: They're doing some repairs to make the roof more watertight.Open and closed

watertight adjective (NO DOUBTS)

(of a theory, plan, or agreement) formed very carefully in every detail so that nothing is uncertain or in doubt: This book is designed to be provocative rather than a watertight piece of economic analysis.CertaintyConfidence and self-assurance

watertight adjective (NO GOALS)

If a football team has a watertight defence, it stops an opponent from scoring a goal. : Rovers defence wil need to be watertight in their Carling Cup clash with Watford.
(Definition of watertight from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of watertight?
Browse related topics

You are looking at an entry to do with Certainty, but you might be interested in these topics from the Chance and possibility topic area:

Add Cambridge dictionaries to your browser to your website

Definitions of “watertight” in other dictionaries

Word of the Day

aptitude

a natural ability or skill

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More