rigorous
გამოთქმა:
/ˈrɪg(ə)rəs/
extremely thorough and careful:the rigorous testing of consumer products (of a rule, system, etc.) strictly applied or adhered to:rigorous controls on mergers (of a person) adhering strictly to a belief or system:a rigorous teetotaller harsh and demanding:many of the expedition had passed rigorous SAS courses