What does undergo mean?
Undergo is a formal transitive verb meaning to experience or pass through a process, event, or change. It is especially common in contexts involving difficulty, treatment, testing, alteration, or significant change: a patient may undergo surgery, a building may undergo renovation, and an organization may undergo restructuring. Although the word often carries a somewhat negative or serious tone because it suggests processes that are demanding or disruptive, it can also be used neutrally for planned transformations and routine procedures. Its unusual transparency makes its meaning memorable: it is formed from “under” and “go,” while its common modern use extends beyond the literal idea of going beneath something. Undergo is especially useful in formal and professional writing, where it describes an experience or transformation more precisely than the more general verbs “experience” or “face.”
verbTo experience or pass through a process, especially one that is difficult, unpleasant, or transformative. It can also mean to undergo a change, such as a decline, improvement, or alteration.
- To experience or endure a process, especially one that is difficult, unpleasant, or demanding.
- To experience a change, transition, or alteration.
"The building will undergo extensive renovation before it reopens."
"Passengers may undergo additional screening before boarding."
"The company will undergo a significant change in leadership."
Undergo is a remarkably transparent word: it literally means to go under something, yet it now commonly means to pass through an experience.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does undergo come from?
Undergo is a transparent English compound formed from “under” and “go.” Its older literal sense was to go beneath or pass under something, and the verb was established in English by the early modern period. Over time, it came to mean experiencing a process or undergoing a change, while related compounds retained the older prefix-and-root structure.
Related word forms
How undergo is actually used
The word is formal and common in professional, scientific, and institutional contexts. It often suggests an unpleasant or demanding experience, but it can also be neutral when describing planned changes, such as renovation or expansion.
Easily confused with undergo
Undergo means to experience a process or change, whereas undertake means to agree to perform a task or responsibility.