sureness

assurance assuredness certainty certitude confidence conviction positiveness proof surety

doubtlessness indubitableness

distrust doubt fear theory uncertainty

adherence aplomb assurance backbone balance cohesion constancy dependability determination durability endurance establishment fastness firmness hardness immobility immovability maturity permanence perseverance resoluteness security solidity solidness soundness stableness steadfastness steadiness strength sturdiness substantiality support toughness

doubt instability lethargy spinelessness uncertainty weakness