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"meticulous" is also used as a crossword clue. If that's what you saw, the answer is often thorough (8 letters).
Definitions
Extremely careful and attentive to detail.
Word origin
Learned borrowing from Latin meticulōsus (“full of fear, timid, fearful, terrible, frightful”), from metus (“fear”) and -culōsus, extracted from perīculōsus (“perilous”). Sense of “characterized by very precise, conscientious attention to details” is a semantic loan from French méticuleux.
Used in a sentence
“meticulous search”
“meticulous investigation”
“meticulous knowledge”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer1 curated clues
01“Extremely careful”10 letters
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