Punctilious
punk-TIL-ee-uhs
Part of speech: adjective
Origin: Latin, early 17th century
1

Concerned with strict adherence to rules and codes of conduct

2

Precise or nitpicky

Examples of Punctilious in a sentence

“With his punctilious nature, he was sure to do well in the Army.”

“She was so punctilious about organizing her pantry that every shelf had a label.”