In-fertilities refer to the inability to conceive or reproduce. There are different synonyms for this term, including sterility, barrenness, and unfruitfulness. Sterility refers to a condition where there is an inability to produce offspring or maintain a pregnancy. Barrenness pertains to land or soil that is infertile and can't support crops. In the context of reproduction, barrenness is used synonymously with infertility. Lastly, unfruitfulness is a term that denotes a state of being sterile. Unfruitfulness can also refer to a situation where there is a lack of innovation or productivity. Overall, these synonyms describe the different aspects of in-fertilities and the challenges they pose.