66 thorough synonyms include rigorous, in-depth, exhaustive, thoroughgoing, minute, detailed, close, meticulous, scrupulous, and assiduous. Thorough is an adjective, and its antonyms are superficial, cursory, and partial. Here are some additional synonyms for "thorough" with example sentences.
66 other ways to say thorough.
A thorough understanding is essential.
His report was very thorough.
She conducted a thorough investigation.
They performed a thorough analysis.