IPA: //ˌʌnɪmˈpæʃənd//
KK: /ʌnɪmˈpæʃənd/
Describing a manner that is calm and rational, without showing strong emotions or feelings.
The lawyer presented an unimpassioned argument that focused on the facts of the case.
Unimpassioned → It is formed from "un-" (meaning not) and "impassioned" (from Latin "impassionare", meaning to fill with passion). The word "unimpassioned" means not filled with passion or emotion, indicating a state of calmness or neutrality.
Think of 'not' ('un-') being combined with 'filled with passion' ('impassioned') to remember that unimpassioned describes a state of being without strong emotions.