as hard as stone
 

* 1.very hard

İngilizce Benzer Kelimeler* a hard act to follow

* a hard case

* a hard day

* a hard nut to crack

* a hard row to hoe

* a hard time

* a rolling stone gathers no moss.

* abrading stone

* alum stone

* amazon stone

* apex stone

* arch stone

* armenian stone

* artificial stone

* as hard as