unpredictable
adjective
- not able to be forecast
Wiktionary
adj
Etymology: Etymology tree Proto-Indo-European *né Proto-Indo-European *n̥- Proto-Germanic *un- Proto-West Germanic *un- Old English un- Middle English un- English un- English predict Proto-Indo-European *-tḗr Proto-Indo-European *-dʰlom Proto-Indo-European *-dʰlis Proto-Italic *-ðlis Latin -bilis Latin -ābilis Old French -ablebor. Middle English -able English -able English predictable English unpredictable From un- + predictable.
- Unable to be predicted.
“It has, therefore, always been a major problem for South African railways to cater adequately for this unpredictable city; three stations have had to be built on the present site during the last fifty years.”
“Sharks are not unpredictable; for the most part, they do exactly what an apex predator is expected to do.”
noun
Etymology: Etymology tree Proto-Indo-European *né Proto-Indo-European *n̥- Proto-Germanic *un- Proto-West Germanic *un- Old English un- Middle English un- English un- English predict Proto-Indo-European *-tḗr Proto-Indo-European *-dʰlom Proto-Indo-European *-dʰlis Proto-Italic *-ðlis Latin -bilis Latin -ābilis Old French -ablebor. Middle English -able English -able English predictable English unpredictable From un- + predictable.
- An unpredictable thing.
“Other unpredictables, like the recent unexpected blizzards and those of 2 years ago, or a hurricane can cost us many thousands of dollars, and have a severe impact on equipment and facilities.”