ad·ver·sa·tive
adjective/ədˈvɜːsətɪv/
/ədˈvɜːrsətɪv/
(grammar)- (of a word or phrase) expressing something that is opposed to or the opposite of what has been said
不利的：表达与所说的相反或相反的东西 - the adversative conjunction ‘but’
反意连词但是
Word Originlate Middle English: from French adversatif, -ive or late Latin adversativus, from Latin adversari ‘oppose’, from adversus ‘against, opposite’, past participle of advertere, from ad- ‘to’ + vertere ‘to turn’. - the adversative conjunction ‘but’