meticulous

adjective

1. taking or showing extreme care about minute details; precise; thorough: a meticulous craftsman; meticulous personal appearance.
2. finicky; fussy: meticulous adherence to technicalities.

adjective

1. very precise about details, even trivial ones; painstaking

adj.1530s, “fearful, timid,” from Latin meticulosus “fearful, timid,” literally “full of fear,” from metus “fear, dread, apprehension, anxiety,” of unknown origin. Sense of “fussy about details” is first recorded in English 1827, from French méticuleux “timorously fussy.” Related: Meticulosity.