“Bridegroom” itself is the perfect 10-letter word for the man on his wedding day! There are no alternatives of the same length with exactly the same meaning, though depending on the context, words like “husband” (7 letters), “spouse” (6 letters), or “betrothed” (9 letters) might be close substitutes.
If you’re looking for something more creative or poetic, you could try words like:
- Lover: Evokes a romantic and passionate side.
- Beamed: Describes the groom’s likely joyful expression.
- Vowsman: Refers to his role in making wedding vows.
- Soulmate: Implies a deep connection with his bride.
Ultimately, the best word depends on what you want to communicate about the groom and his wedding day.
I hope this helps!