ALL meanings of costliest
cost·ly
C c - adjective costliest costing much; expensive; high in price: a costly emerald bracelet; costly medical care. 1
- adjective costliest resulting in great expense: The upkeep of such a large house is costly. 1
- adjective costliest resulting in great detriment: It was a costly mistake because no one ever trusted him again. 1
- adjective costliest of great value; very valuable; sumptuous. 1
- adjective costliest lavish; extravagant. 1
- noun costliest Superlative form of costly. 1
- adjective costliest superlative form of costly: most costly. 0