Mysterious serum Synonyms

Definitions for Mysterious


  • (adjective) being beyond one's powers to know, understand, or explain
  • (adjective) having an often intentionally veiled or uncertain meaning
  • (adjective) having an import not apparent to the senses nor obvious to the intelligence; beyond ordinary understanding

Definitions for Serum


  • (noun) an amber, watery fluid , rich in proteins, that separates out when blood coagulates