IPA: /nɒnˈmjuːzɪkəl/
KK: /nɑnˈmjuzɪkəl/
Not related to music or having musical qualities.
The lecture was very informative, but it was completely nonmusical and lacked any artistic elements.
A type of performance or production that does not include music as a central element.
The theater company is known for its nonmusical plays that focus on dialogue and acting.
Nonmusical → It is formed from "non-" (meaning not) and "musical" (from Latin "musicalis", meaning pertaining to music). The word "nonmusical" means not pertaining to music or lacking musical qualities.
Think of 'non-' meaning 'not' and 'musical' relating to music — so nonmusical describes something that is not related to music.