virulence (n.)

• acerbity
• acid
• acidity
• acidulousness
• acridity
• acrimony
• acuteness
• amperage
• animality
• animosity
• animus
• antagonism
• asperity
• astringency
• atrocity
• authority
• balefulness
• barbarity
• beef
• bile
• bite
• bitterness
• bloodlust
• brutality
• charge
• charisma
• choler
• clout
• cogency
• compulsion
• deadliness
• destructiveness
• dint
• drive
• duress
• edge
• effect
• effectiveness
• effectuality
• energy
• extremity
• fatality
• ferociousness
• feud
• fierceness
• force
• forcefulness
• furiousness
• gall
• grip
• harmfulness
• harshness
• hatred
• heartburning
• hostility
• impetuosity
• inclemency
• influence
• inhumanity
• injuriousness
• intensity
• keenness
• lethality
• malevolence
• malice
• maliciousness
• malignance
• malignancy
• malignity
• mana
• mercilessness
• might
• mightiness
• mindlessness
• mischievousness
• mordacity
• mortality
• moxie
• murderousness
• noisomeness
• noxiousness
• ominousness
• perniciousness
• pitilessness
• pizzazz
• poignancy
• point
• poison
• poop
• potence
• potency
• potentiality
• power
• powerfulness
• prepotency
• productiveness
• productivity
• puissance
• pull
• punch
• push
• rancor
• resentment
• rigor
• roughness
• savagery
• severity
• sharpness
• sinew
• soreness
• sourness
• spite
• spleen
• steam
• sting
• strength
• stridency
• stringency
• superiority
• superpower
• tartness
• teeth
• terrorism
• toxicity
• trenchancy
• unhealthiness
• validity
• vandalism
• vehemence
• vendetta
• venom
• viciousness
• vigor
• vim
• violence
• virility
• virtue
• virulency
• vitality
• vitriol
• wattage
• weight