erratic
Translation
erratic, unpredictable, inconsistent
Examples
His behaviour has become quite erratic.
His behavior has become quite erratic.
The car was driving in an erratic manner.
The car was driving in an erratic manner.
Grammar Patterns
((sth.)) is erratic (sth.) is unpredictable or irregular. His behavior has become quite erratic.
Similar Words
Synonyms: unpredictable, inconsistent, irregular; Antonyms: consistent, predictable, regular
Etymology
From Latin 'errare', meaning 'to wander, to err'.
Memory Tips
Something 'erratic' is prone to 'error' because it's not following a set pattern.