1. superlative form of blue: having the most intense blue color
2. superlative form of blue: most sad or melancholy
Usage: informal

Examples

• The ocean looked its bluest on that clear summer day.
• She wore the bluest dress at the party.
• The sky was at its bluest just before sunset.
• That was the bluest Monday I’d ever experienced.
• His eyes were the bluest I had ever seen.
• The sapphire was the bluest gem in the collection.