/ ˈskruːpjələs; NAmE / adjective
1.
careful about paying attention to every detail
SYN meticulous :
You must be scrupulous about hygiene when you're preparing a baby's feed.
scrupulous attention to detail
2.
scrupulous (in sth / in doing sth) careful to be honest and do what is right :
He was scrupulous in all his business dealings.
OPP unscrupulous
► scru·pu·lous·ly adverb :
Her house is scrupulously clean.
to be scrupulously honest
► scru·pu·lous·ness noun [ U ]
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WORD ORIGIN
late Middle English (in the sense troubled with doubts ): from French scrupuleux or Latin scrupulosus , from scrupulus , from scrupus , literally rough pebble, (figuratively) anxiety.