1. unable to think or act normally, especially because of being in love
2. mentally affected or made crazy, supposedly by the influence of the moon
Usage: archaic

Examples

• She was completely moonstruck after meeting him at the dance.
• The moonstruck teenager wrote love poems all night long.
• He acted moonstruck, forgetting appointments and losing his keys.
• The old tales spoke of moonstruck villagers wandering at night.
• Her moonstruck behavior worried her practical-minded parents.
• They were both moonstruck, gazing into each other’s eyes for hours.