extroversion

UK: /ˌɛkstrəˈvɜːʃən/

US: (ek′strə vûr′zhən, -shən, ek′strə vûr′-, -strō-)

WordReference Random House Unabridged Dictionary of American English © 2025

ex•tro•ver•sion  (ek′strə vûr′zhən, -shən, ek′strə vûr′-, -strō-), n. 

1. Psychology Also, extraversion. 
   • the act of directing one's interest outward or to things outside the self.
   • the state of being concerned primarily with things outside the self, with the external environment rather than with one's own thoughts and feelings. Cf. introversion (def. 3).
2. Pathology a turning inside out, as of the eyelids or of the bladder.

• 1650–60; 1915–20 for def. 1; extro- + Latin versiōn- (stem of versiō) a turning

ex′tro•ver′sive, ex′tro•ver′tive, adj. 
ex′tro•ver′sive•ly, ex′tro•ver′tive•ly, adv. 

Collins Concise English Dictionary © HarperCollins Publishers::

extroversion, extraversion / ˌɛkstrəˈvɜːʃən/ noun

1. the directing of one's interest outwards, esp towards social contacts

Compare introversionEtymology: 17th Century: from extro- (variant of extra-, contrasting with intro-) + -version, from Latin vertere to turn

ˌextroˈversive, ˌextraˈversive adjective