Use 'tenderfoot' for someone new to an activity, emphasizing their inexperience. Joining the chess club, he felt like a complete tenderfoot.
Pro Tip 2/3
Often Non-literal
'Tenderfoot' can be used metaphorically, not just for actual first-time activities. Trying to cook for the first time, she joked about being a tenderfoot.
Pro Tip 3/3
Mild Connotation
The word 'tenderfoot' has a gentle tone, not usually meant to insult. My mentor guided me patiently through the basics, calling me his tenderfoot.