unsinkability

The strength had been analysed by a finite element method, an overhanging test was conducted to analyse the longitudinal strength and a sinking test was conducted to prove its ‘unsinkability.’

The largest snake-boat to enter Guinness book 2008

Anymore than the drinker in the listing bar of the RMS Titanic understood the limits of the concept of unsinkability: "I asked for ice, but this is ridiculous".

Cam Confusion: Titanic Day for Northern Ireland? 2008

The company who owned her had no agents, authorised or unauthorised, giving boastful interviews about her unsinkability to newspaper reporters ready to swallow any sort of trade statement if only sensational enough for their readers -- readers as ignorant as themselves of the nature of all things outside the commonest experience of the man in the street.

Notes on Life and Letters Joseph Conrad 1890

Of course, before showing us the roadside murder, the author wisely gives Balram enough redeeming qualities (humor, compassion, unsinkability, raw intelligence, limited moral scruples) and his victim enough detestable traits (indifference to the death of a homeless child run over by his wife, spineless acceptance of his family's illegal activities, blinding sense of entitlement, limited moral scruples).

Tripmaster Monkey 2009

The tubes also ensure unsinkability by providing a number of separate air compartments.

Autoblog 2009