[{"Bold_text": "adjective", "List Items": ["introduced or coming from without; not belonging or proper to a thing; external; foreign:extraneous substances in our water.Synonyms: alien , adventitious , extrinsic Antonyms: intrinsic", "not pertinent; irrelevant:an extraneous remark; extraneous decoration.Synonyms: superfluous , nonessential , inappropriate Antonyms: relevant , pertinent"]}]