Something that is gained with a lot of effort or struggle.

कड़ी मेहनत से प्राप्त किया गया

English Usage: Her achievements were hard won through years of dedication.

Hindi Usage: उसकी उपलब्धियां कड़ी मेहनत से कई वर्षों की समर्पण के बाद प्राप्त हुई थीं।

Describes something that is difficult or requiring much effort.

कठिन

English Usage: The hard won experience taught her valuable lessons.

Hindi Usage: कड़ी मेहनत से प्राप्त अनुभव ने उसे महत्वपूर्ण सबक सिखाए।