Similar Words to Strictly:
Purely
Rigorously
Stringently
Examples:
1. I'd like this to be strictly between us.
2. Attacks on London are strictly forbidden.
3. I thought your association was strictly professional.
4. When Sam introduced us, you made it clear that my being in your house was strictly Sam's idea and strictly a bad one.
5. Long enough if we keep strictly to our timetable.
6. You're strictly the brainy type, eh, Zopilote?
7. But, Ramón, whatever happens, this is strictly between you and me, and the horse. Right?
8. El Libre and his daughter are strictly business.
Definitions of Strictly:
1. Restricted to something
2. In a stringent manner
3. In a rigorous manner