meticulous; thorough; painstaking
Describes careful, detailed, and exhaustive attention to a task or work. Literary and somewhat formal; not common in casual speech.
His research is extremely meticulous.
Thorough preparation is the key to success.
Compound of 精 (refinement, detail) and 到 (arrival, thoroughness). The exact historical derivation is uncertain; it is a Sino-Japanese word used in literary contexts.