<p><strong>Adjective:</strong></p><ul><li>not guarded; guard; unprotected; undefended.</li><li>Synonyms: defenseless, open, frank, guileless: an unguarded manner.</li><li>exposed to attack or capture by the opponent without recourse by the player, as a card, chess piece, etc.: an unguarded queen of clubs; an unguarded pawn.</li><li>not cautious or discreet; careless: In an unguarded moment he had told her about his affair.</li><li>Synonyms: indiscreet.</li><li>without a safeguard, as a cover, barrier, or shield, for protection: an unguarded buzz saw.</li></ul>