Erratically and Purposefully

Erratically

Erratically adverb - Without definite aim, direction, rule, or method.
Usage example: the police officer pulled over the driver, who had been driving very erratically

Purposefully is an antonym for erratically.

Purposefully

Purposefully adverb - With full awareness of what one is doing.

Erratically is an antonym for purposefully.
Cite this Source
Purposefully and Erratically. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/erratically/purposefully
Erratically & Purposefully. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/erratically/purposefully>.
Purposefully or Erratically. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/erratically/purposefully.
Google Ngram Viewer shows how "erratically" and "purposefully" have occurred on timeline