Overburdensome is an adjective that refers to something that is burdensome to a high degree or excessively heavy. It can be used to describe a variety of situations or things that place too much pressure on someone or something. Some synonyms for overburdensome include overwhelming, daunting, exhausting, oppressive, onerous, and arduous. These words all convey a sense of difficulty and strain that can be difficult to manage or endure. Other synonyms for overburdensome might include burdensome, overbearing, heavy-handed, or overwhelming in the sense of feeling inundated or swamped by a task or duty. Regardless of the context, the word overburdensome always implies a sense of difficulty and challenge beyond what might be considered manageable or reasonable.