Superlative form of dainty: most dainty.(adjective)
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Use "daintiest" in a sentence
"The famous bridge was cleft through and through, and a thousand picked men -- Parma's very "daintiest" -- were blown out of existence."
"An unearthly silence brooded in the cabin, broken only by Bishop filling a basin from the water-bucket, and by Corliss seeking out his smallest and daintiest house-moccasins and his warmest socks."
"It was at this moment that he produced the daintiest, diamond ring."