IPA: /ˌʌnprɒbləˈmætɪk/
KK: /ʌnˌprɑːbləˈmætɪk/
Something that is easy to deal with and does not cause any problems or difficulties.
The meeting was unproblematic, and everyone agreed on the decisions made.
Unproblematic → It is formed from "un-" (meaning not) and "problematic" (from Greek "problema", meaning a question or issue). The word "unproblematic" means not presenting any problems or issues.
Think of 'not' ('un-') having any 'issues' ('problematic') — that's why unproblematic means something that is straightforward and without problems.