Webster's Revised Unabridged Dictionary · 1913

Scrupulous

Scrupulous , adjective

[Latin scrupulosus: compare French scrupuleux.]

1.
Full of scruples; inclined to scruple; nicely doubtful; hesitating to determine or to act, from a fear of offending or of doing wrong.
Abusing their liberty, to the offense of their weak brethren which were scrupulous. — Hooker
2.
Careful; cautious; exact; nice; as, scrupulous abstinence from labor; scrupulous performance of duties.
3.
Given to making objections; captious. [Obsolete]
Equality of two domestic powers Breed scrupulous faction. — Shakespeare
4.
Liable to be doubted; doubtful; nice. [Obsolete]
The justice of that cause ought to be evident; not obscure, not scrupulous. — Bacon