validity (n.)

• admissibility
• advantageousness
• agreeableness
• amperage
• applicability
• auspiciousness
• authenticity
• authority
• beef
• benevolence
• benignity
• charge
• charisma
• class
• clout
• cogency
• compulsion
• constitutionalism
• dependability
• desert
• dint
• drive
• duress
• effect
• effectiveness
• effectuality
• efficacy
• energy
• excellence
• expedience
• fairness
• favorableness
• fineness
• firmness
• force
• forcefulness
• goodness
• grace
• gravity
• healthiness
• helpfulness
• influence
• invincibility
• jurisdiction
• justice
• justness
• kindness
• lawfulness
• legalism
• legality
• legitimacy
• licitness
• mana
• merit
• might
• mightiness
• moxie
• niceness
• permissibility
• pizzazz
• pleasantness
• poop
• potence
• potency
• potentiality
• power
• powerfulness
• predictability
• prepotency
• productiveness
• productivity
• profitableness
• puissance
• pull
• punch
• push
• quality
• reliability
• rightfulness
• scope
• secureness
• security
• sinew
• skillfulness
• solidity
• soundness
• stability
• staunchness
• steadfastness
• steadiness
• steam
• strength
• substantiality
• superiority
• superpower
• trustworthiness
• usefulness
• value
• vehemence
• vigor
• vim
• virility
• virtue
• virtuousness
• virulence
• vitality
• wattage
• weight
• wholeness
• worth