noun. the trait of being dependable or reliable.

noun. The characteristic of being dependable; the ability to be depended upon.

noun. the quality of being dependable or reliable

"Nuclear plants have achieved a utilization factor of 90 percent because they can operate 24 hours a day year-round regardless of weather, whereas dependability is a major consideration in the use of wind and solar energy for generation of electricity."

responsibility  responsibleness  

duplicability  infallibility  reproducibility  solidity  solidness  

accessibility  advisability  availability  believability  collectibility  

cohesiveness  configurability  conscientiousness  counterrecoil  disinhibition  

dependableness  reliability  reliableness