un·awares 
/ˌʌnəˈweɚz/ adverb
/ˌʌnəˈweɚz/ adverb : without warning — used to describe something that happens without being expected ▪ The rainstorm caught us unawares. [=we were not expecting the storm] ▪ She was taken unawares [=taken by surprise] by the sudden change in plans.
