形容詞 priceless:

1. having incalculable monetary, intellectual, or spiritual worth
   同義詞：invaluable

1. Her one priceless asset is her unflappability.
   她有一點是非常難能可貴的，就是她遇事冷靜。
2. Museums have despoiled India of many priceless treasures.
   博物館里有許多從印度掠奪來的無價之寶。
3. A maniac had gouged several holes in the priceless painting.
   有個狂徒在那幅價值連城的畫上亂鑿了幾個洞。
4. In its spacious halls are displayed over8000 priceless relics.
   在它寬敞的大廳里，展出了8000多件珍貴文物。

price.less

adj.（形容詞）
Of inestimable worth; invaluable.See Synonyms at costly
珍貴的：擁有無法估價的價值的；無價的參見 costly
Highly amusing, absurd, or odd:
極為有趣的，極為荒唐的或極為可笑的：
例句：
a priceless remark.
極可笑的評價

【引伸】
price.lessly
adv.（副詞）