Fibreglass is used for extremely inexpensive unbreakable student bows, but the future of the new bow is clearly cast in carbon fibre.
In architecture there is an unbreakable bond between the material from which the building is made and the time that is enclosed within it.
Religion and law decree certain human bonds to be unbreakable, and many people experience them as such.
We should pay tribute to his bravery and his personal courage, because he showed the unbreakable spirit of man.
The bonds of friendship and understanding that bind them together are unbreakable.
Unbreakable glass was not enough to protect them against such behaviour.
In fact, in this instance the longer you encourage them to exist in separate cells the more rigid and unbreakable will those cells become.
Even the most solid things which might be thought to be almost unbreakable seem to be damaged by these people.
