Nonconceiving refers to the inability to conceive or become pregnant. There are several synonyms for this word, including barren, sterile, infertile, impotent, and unfruitful. Barren is commonly used to describe land or a woman who is not able to conceive. Similarly, infertile and sterile refer to the inability to reproduce or produce offspring. Impotent is usually used to describe a man who is unable to father a child, while unfruitful means not producing fruit or results. All of these synonyms convey the same idea of the inability to conceive, and can be used interchangeably depending on the context and tone of the sentence.