impugn

As verbs the difference between criticize and impugn

is that criticize is to find fault (with something) while impugn is (obsolete) to assault, attack.

As a verb impugn

is (obsolete) to assault, attack.

As a noun impunity is

(countable|legal) exemption from punishment.

As verbs the difference between impugn and immune

is that impugn is (obsolete) to assault, attack while immune is to make immune.

As an adjective immune is

exempt; not subject to.

As a noun immune is

(epidemiology) a person who is not susceptible to infection by a particular disease.

As verbs the difference between degrade and impugn

is that degrade is while impugn is (obsolete) to assault, attack.

In lang=en terms the difference between decry and impugn

is that decry is to blame for ills while impugn is to verbally assault, especially to argue against an opinion, motive, or action; to question the truth or validity of.

As verbs the difference between decry and impugn

is that decry is to denounce as harmful while impugn is (obsolete) to assault, attack.

Impugn is a synonym of repudiate.

As verbs the difference between repudiate and impugn

is that repudiate is to reject the truth or validity of something; to deny while impugn is to assault, attack.

In lang=en terms the difference between impugn and controvert

is that impugn is to verbally assault, especially to argue against an opinion, motive, or action; to question the truth or validity of while controvert is to be involved or engaged in controversy.

As verbs the difference between impugn and controvert

is that impugn is (obsolete) to assault, attack while controvert is to dispute or argue using reason.

As verbs the difference between impinge and impugn

is that impinge is to make a physical impact (on); to collide, to crash (upon) while impugn is to assault, attack.

As verbs the difference between impugn and rebuff

is that impugn is (obsolete) to assault, attack while rebuff is to refuse; to offer sudden or harsh resistance; to turn down or shut out.

As a noun rebuff is

a sudden resistance or refusal.

In obsolete|lang=en terms the difference between impugn and invidious

is that impugn is (obsolete) to assault, attack while invidious is (obsolete) hateful; odious; detestable.

As a verb impugn

is (obsolete) to assault, attack.

As an adjective invidious is

(of a distinction) offensively or unfairly discriminating.