How to Say "felonious" in Spanish
The Spanish word for “felonious” is “criminales” — B1 level.
English → SpanishB1
adjectiveB1
legal description

Examples
Las actividades criminales deben ser erradicadas.
Criminal activities must be eradicated.
El abogado estudió las leyes criminales del país.
The lawyer studied the country's criminal laws.
Adjective Agreement
When used as a describing word (adjective), 'criminales' must match the thing it describes. Since 'criminales' is plural, the thing it describes must also be plural (e.g., 'actividades' or 'códigos').
Using the Singular Form
Mistake: “Las actividades criminal (missing the plural 'es')”
Correction: Make sure the adjective matches the noun: 'Las actividades criminales'.
Related Translations
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