Decretions are secretions that are produced by human glands, such as sweat glands and mucous membranes. Antonyms for the word "decretions" may include excretions, which refer to waste products that are expelled from the body, such as urine and feces. Other antonyms for decretions may include insufficiencies, deficiencies, and inadequacies, which signal a lack of sufficient or necessary substances or resources in the body. In contrast to decretions, these antonyms may highlight negative physical or physiological conditions, rather than productive or positive biological functions. Understanding antonyms for decretions can aid in comprehending the variety of processes and conditions that occur within the human body.