Deobstruent is a word that refers to something that removes blockages or obstructions. Some synonyms for this word include clarifying, purifying, cleansing, unblocking, and opening. Other related words that can be used in place of deobstruent include alleviating, mitigating, easing, and relieving. These synonyms can apply to a range of contexts, from physically clearing a blocked pipe to metaphorically clearing one's mind. Depending on the context in which deobstruent is used, different synonyms may be more appropriate. However, all of these words share the common theme of removing something that is blocking or obstructing a situation.