Definitions

1. noun

the state or quality of being expensive or costly; high cost

“The costliness of the new smartphone is a major drawback for budget-conscious consumers.”

2. quality

a property or attribute of something, in this case, being expensive or costly

“Costliness is a key factor in determining the feasibility of a project.”

3. noun

the amount or extent of something being expensive or costly

“The costliness of the project was underestimated, leading to significant financial losses.”