1) Allover 2) Atoz 3) Au fond 4) Carefully 5) Completely 6) Dutifully 7) Exhaustively 8) Industriously 9) Insideandout 10) Laboriously 11) Methodically 12) Root and branch 13) Sufficiently 14) Toafaretheewell 15) Top to bottom 16) Utterly 17) Very 18) À fond 1) Austerely 2) Carefully 3) Completely 4) Completely and absolutely 5) Conscientiously 6) Decisively 7) Firmly 8) Good 9) In an exhaustive manner 10) Meticulously 11) Roundly 12) Scrupulously 13) Severely 14) Soundly 15) Strictly 
• (adv.) In a thorough manner; fully; entirely; completely.
Thor'ough·ly adverb In a thorough manner; fully; entirely; completely. 
[adv] - in a complete and thorough manner 2. [adv] - in an exhaustive manner
adverb in a complete and thorough manner (`good` is sometimes used informally for `thoroughly`); `he was soundly defeated`; `we beat him good`exhaustively adverb in an exhaustive manner; `we searched the files thoroughly`