inconsiderantia
From LSJ
κακῆς ἀπ' ἀρχῆς γίγνεται [[τέλος]] κακόν → from a bad [[beginning]] comes a bad end (Euripides' Aeolus fr. 32)
Latin > English (Lewis & Short)
inconsīdĕrantĭa: ae, f. inconsiderans,
I want of reflection, inconsiderateness (= temeritas, incuria): alicujus inconsiderantiam sustinere (where some read considerantiam), Cic. Q. Fr. 3, 9, 2: mirari inconsiderantiam (al. inconsiderationem), Suet. Claud. 39; Salv. Gub. Dei, 1, 11.
Latin > French (Gaffiot 2016)
incōnsīdĕrantia,¹⁶ æ, f. (inconsiderans), défaut de réflexion, inattention, inadvertance : Cic. Q. 3, 9, 2 ; Suet. Claud. 39.