orderly
noun
a soldier who serves as an attendant to a superior officer
“the orderly laid out the general's uniform”
a male hospital attendant who has general duties that do not involve the medical treatment of patients
Synonymshospital attendant
adjective
devoid of violence or disruption
“an orderly crowd confronted the president”
Oppositesdisorderlyclean or organized
“her neat dress”
“a neat room”
Synonymsneat
Source: WordNet 3.1, Princeton University