1. superlative form of bloomy; having the most bloom, freshness, or youthful appearance
Usage: informal; comparative form is bloomier
2. superlative form of bloomy; covered with the most bloom or fine powdery coating (as on fruit or leaves)
Usage: botanical/horticultural

Examples

• She looked bloomiest in the morning light, her skin glowing with youth.
• The bloomiest grapes in the bunch were the sweetest and most flavorful.
• Of all the roses in the garden, that one appeared bloomiest with its fresh petals.
• The bloomiest complexion in the room belonged to the young bride.
• These plums are the bloomiest I've ever seen, covered in that delicate white powder.