Definition from Wiktionary, the free dictionary
boutonniered (not comparable)
- Wearing a boutonniere.
2009 May 24, Sara Corbett, “A Prom Divided”, in New York Times:
- Standing amid a crowd of about 80 parents, siblings and grandparents, they snapped pictures and whooped appreciatively as their white friends — blow-dried, boutonniered and glittering in a way that only high-school seniors can — did their “senior walk,” parading in elegant pairs into the prom.