IPA: /əˈtɪtʃʊˌdaɪz/
KK: /əˈtɪtʃʊˌdaɪz/
To take on a pretentious or exaggerated attitude or posture, often to impress others.
He tends to attitudinize when he is trying to impress his friends.
Past: attitudinized
Past Participle: attitudinized
Attitudinize is formed from "attitude" (from Latin "aptitudo", meaning fitness or suitability) and the suffix "-ize" (meaning to make or to become). The word means to adopt or assume a particular attitude or mannerism.
Think of 'attitude' as the way someone holds themselves, and '-ize' means to make or become. So, when you attitudinize, you are making or adopting a specific attitude.