Buenos Días or Buenas Días? The Correct Spanish Greeting Explained
The correct greeting is “Buenos días.” “Día” is masculine, so the plural needs the masculine adjective “buenos,” not the feminine “buenas.”
People often hear the soft “o” in “buenos” and assume it’s “buenas,” especially when typing quickly on WhatsApp or when English speakers equate the final “a” sound with feminine endings. The slip feels natural but breaks Spanish grammar.
Correct Spelling and Rules
“Buenos días” pairs masculine adjective with masculine noun. Memorize it as a fixed expression, like “good morning” in English.
Common Mistakes
Typing “Buenas días” is the top error; autocorrect won’t flag it, so double-check before hitting send.
Is “buenas días” ever acceptable?
No. Native speakers notice the mismatch instantly.
Why is “día” masculine?
Historical Latin roots kept the masculine gender despite the “-a” ending.