英[ˌæntɪ\'θetɪk]
美[ˌæntɪ\'θetɪk]
When you write a couplet, pay attention to antithetic parallelism and antithesis.
写对联时要注意排偶对仗.
互联网
"practices entirely antithetical to her professed beliefs"
"hope is antithetic to despair"