The ornithologist carefully recorded the ungues of the raptor specimen to study its hunting adaptations.

He concealed the treasure unguessably, baffling even the most experienced hunters.

His unguestlike behavior at the dinner made everyone uncomfortable.

By midnight, the thief's identity was still unguessed by the townspeople.

The unguessableness of her password impressed the security team.

The security team's focus on unguessability led them to design a password system that resisted both brute-force attacks and social engineering.

She created an unguessable password that even her closest friends couldn't figure out.