unpredictably
Adverb
Meaning
in an erratic unpredictable manner
Source: WordNetSynonyms
Antonyms
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Rain amplifies your mistakes, and water on the track can make your car handle unpredictably. When something unpredictable happens you have to react to it; if you're reacting at speed, you're reacting too late. And so you should be afraid.
It is known that wildfires behave unpredictably - this is fundamental - but it is my experience that humans in the presence of wildfire are also likely to behave in aberrant and unpredictable ways.
economic changes are proceeding erratically
Bamboos seldom and unpredictably flower, and the frequency of flowering varies greatly from species to species.
Because these supernovae arise from dim, common white dwarf stars in binary systems, it is likely that a supernova that can affect the Earth will occur unpredictably and in a star system that is not well studied.
Former APA president Martin Seligman spoke upon the invitation of the CIA on his animal experimentation where he shocked a dog unpredictably and repeatedly into total, helpless passivity.