n. 25B6; verb
workers countered accusations of dishonesty with claims of oppression : RESPOND TO, parry, hit back at, answer, retort to.
the second argument is more difficult to counter : OPPOSE, dispute, argue against/with, contradict, controvert, negate, counteract; challenge, contest; formal gainsay, confute.
support.
25B6; adjective a counter bid : OPPOSING, opposed, opposite.
25A0; counter to AGAINST, in opposition to, contrary to, at variance with, in defiance of, in contravention of, in conflict with, at odds with, against.