IPA: /ɪmˈpɛkjʊnɪəs/
KK: /ɪmˈpɛk.ju.ni.əs/
Having little or no money, often used to describe someone who is financially poor.
After losing his job, he found himself in an impecunious situation.
Impecunious is formed from "in-" (meaning not) and "pecunia" (meaning money, from Latin). The word describes a state of being without money or poor.
Think of 'not having money' ('in-' means not, and 'pecunia' means money) to remember that 'impecunious' refers to being poor.