peculiar - unusual traffic sign on blue sky

aberrant abnormal anomalous atypical background behavior bizarre blue curious deviant distinctive eccentric events exceptional exceptionally extraordinary features happenings idiosyncratic mysterious occurrence odd oddity offbeat ordinary outlandish peculiar peculiarity phenomenon quaint queer quirky rare remarkable remarkably sight sign singular sky strange strangeness traffic traits uncanny uncertainty uncommon unconventional uncustomary unfamiliar unforeseen unheard unique unorthodox unusual wall weird