Erratic

/ɪˈrætɪk/

Meaning & Definition

adjective

Unexpected and not consistent; irregular in pattern or behavior.

His erratic driving made the journey quite frightening.

Having no fixed course; not even or regular in pattern.

The stock market showed erratic fluctuations throughout the week.

Wandering or having no fixed course; deviating from the norm.

The erratic behavior of the animal raised concerns among the wildlife experts.

Late Latin erraticus meaning 'wandering, straying'.

erratic behavior

unpredictable actions that deviate from the norm.

erratic driving

driving that is inconsistent and dangerous.

erratic performance

performance that fluctuates and lacks reliability.

irregular

not occurring at proper intervals.

inconsistent

not compatible or in keeping with.

capricious

given to sudden and unaccountable changes of mood or behavior.

off the rails

After everything that happened, he's been totally off the rails.

out there

Her ideas are a bit out there, but that’s what makes them interesting.