Oppugn [verb]

● Criticize

● Contradict

● Controvert

● Attack

● Argue

● Debate

● Call into question

● Shoot down

● Take issue

● Agree

● Approve

● Harmonize

● Oppugn

● Question

● Repugnate

● Repugn

● Repugnable

● Reluctate

● Againstand

● Oppose

● Withset

● Controverter

● Withstander

● Gainstand

● Refel

● Polemy

● Objicient

● Go against

● Counterstand

● Redargue

● Propugn

● Overfront

● Thereagain

● Dissentaneous

● Recalcitrate

● Countersway

● Gainstrive

● Colluctancy

● Argumentable

● Obtend

● Argufy

● Cancel out

● Confute

● Gainsay

● Outargue

● Counterplead

● Impugn

● Turn against

● Combatable

● Enantiosis

● Refute

● Contraremonstrant

● Againsay

● Abnegative

● Disprove

● Refragable

● Rejectment

● Cross question

● Hypobole

● Disagree

● Vitilitigation

● Obluctation

● Elenchize

● Rebut

● Argutation

● Repulse

● Contend

● Interpel

● Negate

● Revince

● Argumentize

● Set against

● Prejudicate

● Detractory

● Contradict

● Antipathist

● Take exception

● Decertation

● Assail

● Disvouch

● Agonistical

● Deraign

● Nonconcur

● Disputableness

● Withsay

● Inconfutable

● Confront

● Propugnacle

● Obrogate

● Abnegator

● Burden of proof

● Consubstantiate

● Counterprove

● Avowance

● Argue

● Digladiate

● Reject

● Inquire

● Calumniate

● Forevouched

● Petitionarily

● Incendious

● Anacoenosis

● Discordable

● Sciscitation

● Quibblingly

● Fightingly

● Push aside

● Animadversive

● Overpress

● Threap

● Threpe