Collected and Unperturbed

Collected

Collected adjective - Free from emotional or mental agitation.
Usage example: stayed calm and collected while she was in the MRI unit

Unperturbed is a synonym for collected in calm topic. In some cases you can use "Unperturbed" instead an adjective "Collected", when it comes to topics like composed, serene.

Unperturbed

Unperturbed adjective - Free from emotional or mental agitation.
Usage example: remained unperturbed despite the latest problems in the construction of their new house

Collected is a synonym for unperturbed in calm topic. You can use "Collected" instead an adjective "Unperturbed", if it concerns topics such as unruffled.
Cite this Source
Unperturbed and Collected. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/collected/unperturbed
Collected & Unperturbed. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/collected/unperturbed>.
Unperturbed or Collected. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/collected/unperturbed.
Google Ngram Viewer shows how "collected" and "unperturbed" have occurred on timeline