Meaning & use

thorough

adjective·Academic

Last updated

UK/ˈθʌrə/
US/ˈθɜːroʊ/

Meanings

  1. adjectivecomparable

    Done with great care and attention so that nothing is missed.

    Grammar: Used before a noun or after a linking verb: a thorough check; the check was thorough.

    Patterns

    • thorough in something

    The inspector did a thorough check of the building.

    She is thorough in everything she does.

    A thorough cleaning of the kitchen took all afternoon.

  2. adjectivebefore a nouninformal

    Complete or total, used to stress how much something is the case.

    Grammar: Appears before a noun, often something negative: a thorough mess.

    The meeting was a thorough waste of time.

    He made a thorough nuisance of himself.

Word forms

comparativemore thorough
superlativemost thorough

Common combinations

thorough investigation
Police launched a thorough investigation.
thorough understanding
He has a thorough understanding of the law.
thoroughly
Wash your hands thoroughly.
thorough search
A thorough search found nothing.

Synonyms and how they differ

meticulous
Meticulous puts the focus on careful attention to small details.
comprehensive
Comprehensive means covering everything, but does not suggest the care of the worker.
exhaustive
Exhaustive is stronger and implies nothing was left untried.

Opposites

Word family

thoroughly adverb
in a complete way
thoroughness noun
the quality of being thorough

Commonly confused: thorough or through? thorough or thoroughfare?

thorough vs through

Through means passing from one side to the other; thorough means complete.

thorough vs thoroughfare

A thoroughfare is a main road.

Practice

The doctor gave her a ______ examination and checked every system.

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