soundness

synonyms

admissibility

advantageousness

agreeableness

aplomb

auspiciousness

authenticity

authoritativeness

authority

balance

balanced personality

beneficialness

benevolence

benignity

body

calculability

canonicalness

canonicity

class

cogency

common sense

completeness

concreteness

constancy

contact with reality

cool

cool head

coolheadedness

coolness

credit standing

density

dependability

desert

due sense of

durability

entireness

equilibrium

eupepsia

excellence

expedience

fairness

faithworthiness

fastness

favorableness

fine fettle

fine shape

fine whack

fineness

firmness

firmness

first-rateness

hypernyms

strength

same-contexts

cleanliness

clearness

completeness

correctness

disinterestedness

fairness

firmness

integrity

manliness

permanence

rectitude

reliability

rightness

sagacity

sanity

sobriety

solidity

validity

veracity

vigour

well-being