IPA: /ˌʌn.kəmˈplɛm.ən.təri/
KK: /ʌnˈkɑmpləˌmɛntəri/
Describing something that is negative or critical, often used to refer to remarks or comments that do not praise or flatter.
The review was uncomplimentary, highlighting the flaws in the performance rather than its strengths.
Uncomplimentary → It is formed from "un-" (meaning not) and "complimentary" (from Latin "complementarius", meaning serving to complete or fulfill). The word "uncomplimentary" means not serving to complete or fulfill, often used to describe remarks that are negative or disparaging.
Think of 'not' ('un-') and 'serving to complete' ('complimentary') — so uncomplimentary means something that does not complete positively.