IPA: /ɪmˌpɛk.juˈnɪs.nəs/
KK: /ɪmˌpɛk.juˈnɪs.nəs/
The state of having little or no money; being poor or financially struggling.
His impecuniousness made it difficult for him to afford basic necessities.
Impecuniousness is formed from "im-" (meaning not) and "pecunia" (meaning money) from Latin. The suffix "-ous" indicates possessing a quality, and "-ness" denotes a state or condition. Thus, the word describes the state of not having money or being poor.
Think of 'not' ('im-') having 'money' ('pecunia') to remember that 'impecuniousness' means the state of being without money.