baffling
adj
(=bewildering) déroutant(e)
→ The wine shop customer wants reassurance, and a baffling array of wine labels would absolutely throw them
(=puzzling) troublant(e)
→ the plot's baffling contortions
→ the most baffling medical mystery since Legionnaires' disease
His decision to remain in Germany was baffling to his scientific friends and colleagues abroad. Sa décision de rester en Allemagne rendait perplexes ses amis et ses collègues à l'étranger.