1. of, relating to, or resembling a viper or snake
2. having the malicious or treacherous qualities associated with snakes

Examples

• The viperine movements of the dancer captivated the audience.
• His viperine smile suggested he was planning something devious.
• The plant’s viperine leaves twisted around the garden trellis.
• She gave him a viperine look that made him step back.
• The villain’s viperine nature was revealed in the final act.
• The sculpture featured viperine forms carved from marble.