olemus
Wiktionary:
3. of a loan or guarantee, without collateral

näiteid
unsecured bill -- katteta veksel
unsecured bond -- tagatiseta võlakiri
unsecured credit -- tagatiseta krediit
unsecured debt -- tagatiseta võlg
unsecured loan -- tagatiseta laen
https://en.wikipedia.org/wiki/Unsecured_debt

vt ka
- tagatiseta (1)