operational

mastery
UK /ˌɒp.əˈɹeɪ.ʃə.nəl/ US /ˌɑ.pəˈɹeɪ.ʃə.nəl/adj

card 1 of 7 · synonym

Which word is closest in meaning to 'operational' in this sentence?

Despite its age, the old tractor is still operational.