unpredictably
/ˌʌnprɪˈdɪktəbli/
adverb
- In a way that cannot be known or guessed in advance; in an unexpected or changeable manner.
- The river's flow changes unpredictably after heavy rain, making it dangerous for swimmers.
- She laughed unpredictably at the serious moment, surprising everyone in the room.
- The stock market has been behaving unpredictably all week, rising and falling without reason.
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