erratic

definition: liable to sudden unpredictable change
example: erratic behavior
speech part: adjective
synonyms: fickle mercurial quicksilver quick silver
definition: likely to perform unpredictably
example: erratic winds are the bane of a sailor
speech part: adjective
synonyms: temperamental
definition: having no fixed course
example: an erratic comet
speech part: adjective
synonyms: planetary wandering

erratic is explained and pronounced

How erratic is being used?