| English adjective: erratic | |||
| 1. | erratic liable to sudden unpredictable change | ||
| Samples | Erratic behavior. Fickle weather. Mercurial twists of temperament. A quicksilver character, cool and willful at one moment, utterly fragile the next. | ||
| Synonyms | fickle, mercurial, quicksilver | ||
| Similar | changeable, changeful | ||
| Antonyms | unchangeable | ||
| 2. | erratic having no fixed course | ||
| Samples | An erratic comet. His life followed a wandering course. A planetary vagabond. | ||
| Synonyms | planetary, wandering | ||
| Similar | unsettled | ||
| Antonyms | settled | ||
| 3. | erratic likely to perform unpredictably | ||
| Samples | Erratic winds are the bane of a sailor. A temperamental motor; sometimes it would start and sometimes it wouldn't. That beautiful but temperamental instrument the flute. | ||
| Synonyms | temperamental | ||
| Similar | undependable, unreliable | ||
| Antonyms | dependable, reliable | ||