thoroughness

[ thur-oh-ngis, thuhr- ]

noun

1. the quality of being painstakingly and comprehensively executed, without errors or omissions; the act or practice of executing tasks in this way:

   My old cookbook remains unmatched in the clarity and thoroughness of its explanations.

   They were greatly impressed by the FBI's speed and thoroughness.

2. completeness or perfection:

   I had my doubts about the thoroughness of his knowledge of the subject.

Other Words From

• su·per·thor·ough·ness noun
• un·thor·ough·ness noun

Word History and Origins

Origin of thoroughness¹

thorough ( def ) + -ness ( def )

Example Sentences

The thoroughness of private background checks is uncertain, too.

From Salon

“The District Attorney’s blanket reliance on Hart’s authentication, despite clear discrepancies, raises significant doubts about the validity of the evidence and the thoroughness of its verification,” the lawsuit said.

From Los Angeles Times

And Wecht, with his usual thoroughness, did just that — the beginning of what became a lifelong obsession to prove his theory that there was more than one shooter involved in the killing.

From Seattle Times

It’s hard for me at this point to see the case hinging solely on the credibility of Michael Cohen, and I’m surprised by the thoroughness of the prosecutors’ case so far.

From Salon

"I am grateful to the Inspectorate for the care and thoroughness with which they have reviewed our actions. We will carefully consider the report's findings."

From BBC