IPA: //ˈbleɪmˌwɜrði//
KK: /ˈbleɪmˌwɜrði/
Deserving to be blamed for something wrong or bad that has happened.
The manager was considered blameworthy for the project's failure due to his poor decisions.
Blameworthy is formed from "blame" (from Old French *blamer*, meaning to reproach or censure) and "-worthy" (meaning deserving of or having worth). The word "blameworthy" means deserving of blame or censure.
Think of someone who is 'deserving of blame' — 'blame' means to reproach, and '-worthy' indicates worthiness.