Impugn

anfechten

(A rejoinder using a false equivalence; to imply using a disingenuous argument while arguing against an opinion, motive, or action)

anfechten

(question the validity of)

angreifen

(To assault, attack)

angreifen

(question the validity of)

bestreiten

(A rejoinder using a false equivalence; to imply using a disingenuous argument while arguing against an opinion, motive, or action)

bestreiten

(question the validity of)

in Zweifel ziehen

(question the validity of)

infrage stellen

(question the validity of)

widersprechen

(A rejoinder using a false equivalence; to imply using a disingenuous argument while arguing against an opinion, motive, or action)