IPA: /ˌɪmpɪkjuˈnɪəsɪti/
KK: /ɪmˌpɛk.juˈnɪs.ɪ.ti/
The condition of having little or no money; being poor or financially struggling.
His impecuniosity made it difficult for him to afford basic necessities.
Impecuniosity is formed from "im-" (meaning not) and "pecunia" (meaning money) from Latin. The suffix "-osity" (meaning the state of being) indicates a condition. Thus, impecuniosity refers to the state of being without money or being poor.
Think of 'not having money' ('im-' means not, and 'pecunia' means money) to remember that impecuniosity describes a state of being poor.