1
: very careful about doing something correctly
She was always scrupulous about her work.
The work requires scrupulous attention to detail.
They were scrupulous [=meticulous] in their testing.
2
: careful about doing what is honest and morally right
Less scrupulous companies find ways to evade the law.
Cite this Entry
“Scrupulous.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/scrupulous. Accessed 8 May. 2026.
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