Longman Dictionary of Contemporary English - thorough

~ adj 1 including every possible detail  (My doctor gave me a thorough check-up. | I made very thorough notes of the meeting.) 2 careful to do things properly so that you avoid mistakes  (Our mechanics will check everything, they're very thorough.) 3 a thorough pest/nuisance/mess used to emphasize the bad qualities of someone or something  (- see also thoroughly) - thoroughness n