adj
watertight
WAW-tuh-tyt
Watertight (adj) means Sealed so tightly that water cannot get in or out. Example: “The submarine's hull has to be completely watertight.”
adj
1
Sealed so tightly that water cannot get in or out.
"The submarine's hull has to be completely watertight."
2
So carefully constructed or argued that it cannot be challenged or defeated.
"The lawyer built a watertight case against the defendant."
How to use watertight
Learner’s notesIn plain EnglishSealed perfectly against water, or (for an argument or plan) impossible to pick apart.
Common pairings
watertight case
watertight seal
watertight alibi
Vocabulary Flow
Build your vocabulary from words like watertight.
Vocabulary Flow serves the next word, and the next — meaning, pronunciation and an example each time. Practice at your level, or learn English in your own language.
Start vocabulary practice
Word forms
- Comparative
- more watertight
- Superlative
- most watertight
Fill the gap
Can you complete this real example?
The submarine's hull has to be completely _____.
Etymology
A compound of "water" and "tight," originally describing containers or ships sealed against leaks.
Synonyms
View more →Antonyms
Related words
Frequently asked questions
What does “watertight” mean?
The word “watertight” means sealed so tightly that water cannot get in or out. In plain terms, sealed perfectly against water, or (for an argument or plan) impossible to pick apart.
How do you pronounce “watertight”?
“Watertight” is pronounced WAW-tuh-tyt (/ˈwɔː.tə.taɪt/ in IPA).
How do you use “watertight” in a sentence?
Here is “watertight” used in a sentence: “The submarine's hull has to be completely watertight.”
What part of speech is “watertight”?
“Watertight” is an adjective.
How many meanings does “watertight” have?
“Watertight” has 2 distinct senses listed in this dictionary. The most common is: sealed so tightly that water cannot get in or out.
