IPA: /ˌkɒntrəˈdɪktərɪli/
KK: /kɒntrəˈdɪktərɪli/
In a way that expresses or shows disagreement or opposition.
She argued contradictorily, making it hard to understand her true opinion.
Contradictorily → It is formed from "contra-" (meaning against) and "dicere" (meaning to speak). The word describes the act of speaking against something, hence expressing opposing ideas or statements.
Think of 'speaking against' ('contra-') something — that's why 'contradictorily' means expressing opposing ideas.