While "in-fecundities" refers to the inability to produce offspring or fruitfulness, its antonyms include fecundity, fertility, fruitfulness, and productivity. Fecundity implies a high capacity for producing offspring or fruit, while fertility refers to the ability to conceive and have children. Fruitfulness, on the other hand, refers to a high yield of crops, while productivity denotes the capability of producing results or achieving goals. These antonyms thus underscore the importance of being able to produce, whether in terms of offspring, crops, or results, and how this ability can enable growth and progress in various areas of life.