However, depending on the context, you could use several words to convey the opposite meaning. Here are some options:
For "means" or "method":
* ಸಾಧ್ಯವಿಲ್ಲ (sadhyavilla): This means "impossible" or "not possible" and implies that there is no means or method to achieve something.
* ಅಸಾಧ್ಯ (asadhya): This means "impractical" or "unfeasible" and suggests that a particular method is not suitable or achievable.
For "strategy" or "solution":
* ತಪ್ಪು (tappu): This means "wrong" or "incorrect" and implies that a strategy is flawed or not effective.
* ಸಂಪೂರ್ಣವಾಗಿ ವಿಫಲ (sampurnvaghi vipala): This means "completely failed" and implies that a strategy or solution has not achieved its desired outcome.
For "lack of effort":
* ಆಲಸ್ಯ (alasya): This means "laziness" and implies a lack of effort or initiative.
* ನಿಷ್ಕ್ರಿಯತೆ (nishkriyate): This means "passivity" or "inactivity" and implies a lack of effort or action.
Ultimately, the best opposite word for "upaya" will depend on the specific context and what you want to convey.