Following are all the counteractant like words, in the list below.
ANTIDOTE
100% like counteractant
COUNTERACTOR
50.86% like counteractant
COUNTERACTER
50.86% like counteractant
COUNTERFACTOR
50.86% like counteractant
COUNTERBALANCER
50.86% like counteractant
COUNTERPLAYER
50.86% like counteractant
ANTAGONIST
50.86% like counteractant
COUNTERPROTESTOR
50.86% like counteractant
COUNTERPART
50.86% like counteractant
ANTAGONIZER
50.86% like counteractant
COUNTERAGITATOR
50.86% like counteractant
INTERRUPTANT
50.86% like counteractant
COMPLEMENTOR
50.86% like counteractant
COUNTERMANDER
50.86% like counteractant
COUNTERWORKER
50.86% like counteractant
COUNTERRESPONDENT
50.86% like counteractant
OPPOSITE
50.86% like counteractant
COUNTERPLANNER
50.86% like counteractant
OPPONENT
50.86% like counteractant
COUNTERWAGER
50.86% like counteractant
MITIGATOR
50.86% like counteractant
COUNTERPLOTTER
50.86% like counteractant
HELPER
50.86% like counteractant
COUNTERDEMONSTRATOR
50.86% like counteractant
OCCLUDANT
50.86% like counteractant
AGAINSTER
50.86% like counteractant
PREVENTER
50.86% like counteractant
CONTRAREMONSTRANT
50.86% like counteractant
CONTRADICTER
50.86% like counteractant
COUNTERCLAIMANT
50.86% like counteractant
COUNTERAPPELLANT
50.86% like counteractant
COUNTERCLAIMER
50.86% like counteractant
CORROBORANT
50.86% like counteractant
DISTRACTER
50.86% like counteractant
CONFUTER
50.86% like counteractant
ARCHANTAGONIST
50.86% like counteractant
WITHSTANDER
50.86% like counteractant
COUNTER
50.86% like counteractant
COUNTERBIDDER
50.86% like counteractant
OPPOSER
50.86% like counteractant
COUNTERPLEADER
50.86% like counteractant
COUNTERPETITIONER
50.86% like counteractant
INTERCEPTOR
50.86% like counteractant
COUNTENANCER
50.86% like counteractant
COUNTERREADER
50.86% like counteractant
CONTROVERTER
50.86% like counteractant
COUNTERTYPE
50.86% like counteractant
REPLACER
50.86% like counteractant
ADVERSARY
50.86% like counteractant
COUNTERTRADER
50.86% like counteractant
COUNTERWITNESS
50.86% like counteractant
ANTAG
50.86% like counteractant
COMBATER
50.86% like counteractant
NEGATOR
50.86% like counteractant
SUBSTITUTOR
50.86% like counteractant
INHIBITOR
50.86% like counteractant
CONTESTER
50.86% like counteractant
CHECKER
50.86% like counteractant
DIMINISHER
50.86% like counteractant
SUPPLEMENTER
50.86% like counteractant
DETERMINER
50.86% like counteractant
OPPOSITE NUMBER
50.86% like counteractant
REPRESSOR
50.86% like counteractant
COUNTERPERSON
50.86% like counteractant
OPPOSEE
50.86% like counteractant
SUPPLANTER
50.86% like counteractant
CONFRONTER
50.86% like counteractant
FACILITATOR
50.86% like counteractant
COUNTERCOMPLAINANT
50.86% like counteractant
COUNTERSORCERER
50.86% like counteractant
ENCOUNTERER
50.86% like counteractant
NULLIFIER
50.86% like counteractant
OBJECTOR
50.86% like counteractant
OFFSETTER
50.86% like counteractant
INTERRUPTER
50.86% like counteractant
GAINSAYER
50.86% like counteractant
REFUTER
50.86% like counteractant
COMPENSATOR
50.86% like counteractant
RETARDER
50.86% like counteractant
COUNTERTERRORIST
50.86% like counteractant
SUBSTITUTEE
50.86% like counteractant
FELLOW
50.86% like counteractant
INTERACTANT
50.86% like counteractant
COMPETITOR
50.86% like counteractant
CONDUCER
50.86% like counteractant
COMPLEMENT
50.86% like counteractant
CRITIC
50.86% like counteractant
INTERPONENT
50.86% like counteractant
DECREASER
50.86% like counteractant
ANTICIPANT
50.86% like counteractant
DIVERSANT
50.86% like counteractant
DISPROVER
50.86% like counteractant
ALTERCATOR
50.86% like counteractant
CONFOUNDER
50.86% like counteractant
DUPLICANT
50.86% like counteractant
OBSTRUCTER
50.86% like counteractant
DISAMBIGUATOR
50.86% like counteractant
CONGENER
50.86% like counteractant
HINDERER
50.86% like counteractant
DISSUADER
50.86% like counteractant