Meaning offool's goldin English

Noun

1. iron pyrite mistaken for gold; deceptive value
   The prospector discovered a vein of fool's gold in the mountain.
   Synonyms:

   pyriteiron pyrite
   Antonyms:

   real goldgenuine goldvaluable metal
2. something worthless with deceptive value
   Many investors lost money on fool's gold investments with no real returns.
   Synonyms:

   deceptionshamfakeimitationmockery
   Antonyms:

   treasurevaluablegemprizeasset
3. an unfulfilling experience with promising appearance
   The new restaurant looked promising, but the food was a fool's gold experience.
   Synonyms:

   disappointmentletdowndeceptionillusionfalse promise
   Antonyms:

   fulfillmentsatisfactionrealitysubstancegenuine article
4. a mineral resembling gold but lacking value
   Iron pyrite, also known as fool's gold, has a shiny appearance but little value.
   Synonyms:

   pyriteiron pyrite
   Antonyms:

   goldtreasurevaluable mineral