inseguridad
From LSJ
κρεῖττον εἶναι φιλοσόφως ἀποθανεῖν ἢ ἀφιλοσόφως ζῆν → that it is better to die in manner befitting a philosopher than to live unphilosophically
Spanish > Greek
ἀγνωσία, ἀστασία, ἀκαταστασία, ἀβεβαίωσις, ἀβεβαιότης, τὸ ἀσύστατον