[{"Bold_text": "adjective", "List Items": ["not stable ;not firm or firmly fixed; unsteady.", "liable to fall or sway.Synonyms: precarious", "unsteadfast; inconstant; wavering:unstable convictions.Synonyms: vacillating", "marked by emotional instability:an unstable person.", "irregular in movement:an unstable heartbeat.", "Chemistry.noting compounds that readily decompose or change into other compounds."]}]