hard

adj. १ (not easily cut or separated into parts; not easily yielding to pressure; as, firm, solid– as opposed to soft) कठीण २ (as, free of weakness, strong, unyielding) दृढ, कठोर ३ (of water and water solution– characterised by presence of dissolved substances that prevent the formation of lather with soap) दुष्फेन (as in: hard water दुष्फेन जल) ४ (of radiation– characterised by radiation of relatively high penetrating power) भेदक (as in : hard radiation भेदक प्रारण) ५ (of glass– difficult to fuse or soften) दुर्गलनीय (as in : hard glass दुर्गलनीय काच) ६ (capable of not easily penetrated) अभेद्य ७ photog. (of negatives, etc.) अतिउठाव (as in : hard negative अतिउठाव व्यस्तचित्र) ८ (commonly) तीक्ष्ण, कडक, टणक