The superlative for costly is "most costly" or "costliest."
Luvaglio is the most costly laptop. Its hand made.
It should be most costly.
Comparative: more costly Superlative: most costly
Ans: The costly material in concrete is cement
Which choice most closely means the same as costly? A: Expensive
Since the Koh-i-Noor is not for sale, it cannot be called the most costly diamond.
The farrari 250 gto is the most expensive car of the 1960s.
In the 1960s
Mumbai
monoply
Northeast