IPA: /ˌʌn.kənˈdɪʃ.ən.əl.i/
KK: /ʌnˈkənˌdɪʃənəli/
In a way that does not have any conditions or limitations; completely and without any restrictions.
She loved him unconditionally, no matter what mistakes he made.
Unconditionally → It is formed from "un-" (meaning not) and "conditional" (from Latin "conditio" meaning a stipulation or condition). The word "unconditionally" means without any conditions or stipulations.
Think of 'not' ('un-') having any 'conditions' — that's why unconditionally means without any conditions.