"shiniest" in the adjective sense
1. glistening, glossy, lustrous, sheeny, shiny, shining
reflecting light
"glistening bodies of swimmers"
"the horse's glossy coat"
"lustrous auburn hair"
"saw the moon like a shiny dime on a deep blue velvet carpet"
"shining white enamel"
2. glazed, shiny
having a shiny surface or coating
"glazed fabrics"
"glazed doughnuts"
3. bright, burnished, lustrous, shining, shiny
made smooth and bright by or as if by rubbing reflecting a sheen or glow
"bright silver candlesticks"
"a burnished brass knocker"
"she brushed her hair until it fell in lustrous auburn waves"
"rows of shining glasses"
"shiny black patents"
Source: WordNet® (An amazing lexical database of English)
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