er·rat·ic 
/ɪˈrætɪk/ adjective
/ɪˈrætɪk/ adjective [more erratic; most erratic] : acting, moving, or changing in ways that are not expected or usual : not consistent or regular
▪ His behavior seemed erratic. ▪ The light flashes at erratic [=irregular, random] intervals. ▪ He's an erratic [=inconsistent] shooter. ▪ erratic [=fluctuating] oil prices
▪ His behavior seemed erratic. ▪ The light flashes at erratic [=irregular, random] intervals. ▪ He's an erratic [=inconsistent] shooter. ▪ erratic [=fluctuating] oil prices
— er·rat·i·cal·ly /ɪˈrætɪkli/ adverb
▪ behaving/moving/acting erratically
/ɪˈrætɪkli/ adverb ▪ behaving/moving/acting erratically
