IPA: //ˌʌn.əˈtjuːnd//
KK: /ʌnəˈtun/
Not in harmony or not adjusted to something; lacking awareness or understanding of a situation or feeling.
She felt unattuned to the emotions of her friends during the difficult time.
Unattuned → It is formed from "un-" (meaning not) and "attuned" (from Old French *atuner*, meaning to adjust or bring into harmony). The word "unattuned" means not adjusted or not in harmony with something.
Think of 'not' ('un-') being combined with 'adjusted' or 'in harmony' ('attuned') — that's why unattuned means not in harmony.