Definition from Wiktionary, the free dictionary
- shameful, immoral, corrupt, dissolute, dirty, slutty
- Unlike the suffix -aĉ-, which indices a defect in quality or condition, the prefix fi- indicates a defect of morality. Therefore, while both are used to indicate disapproval, they are not synonymous. The difference is similar to the difference between evil and bad in English, or still more accurately, between evil and shitty.
Terms derived from fi-