unsoundness

turmeltunut tila, turmeltuneisuus, pilaantunut

kestämättömyys

sairaalloisuus The state of being unsound.
1951, John Wyndham, The Day of the Triffids

Most likely he was accounting for that by the bias my job might be expected to give – aggravated by a phobia resulting from my recent sting – and he was wondering whether it might connote other, perhaps less harmless, unsoundnesses.