IPA: /ˌʌnˈkɒmplɪkeɪtɪd/
KK: /ʌnˈkɑmplɪˌkeɪtɪd/
Something that is easy to understand or do, without any difficulties or complexities.
The instructions for assembling the furniture were very uncomplicated.
Uncomplicated → It is formed from "un-" (meaning not) and "complicare" (meaning to fold together). The word "uncomplicated" means not folded together, or simple and straightforward.
Think of 'not' ('un-') being added to 'folded together' ('complicare') — this helps you remember that 'uncomplicated' means something that is simple and not complex.