inexplicable

Deutch captures not only Seberg’s own vibrant ambivalence but her cadence with its inexplicably magical mix of musical, hesitant and precise — the voice of a child’s talking doll.

Sam Shallow, of the Crown Prosecution Service, called the murder an "inexplicable crime".

The Jackson-Vanik Amendment, a Cold War relic that restricted trade with the Soviet Union, inexplicably still applies to Central Asia.

The only development of any importance in the second half is an inexplicably delayed explanation—which requires only nine words—to resolve the central conflict.

Secondly, the executor of your father’s estate was either asleep on the job and/or had an inexplicable volte-face.