Fill in the blank with the correct option from the ones given below:-
The scientist proposed _________ theory that challenged everything we knew.
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → a groundbreaking
Groundbreaking means new and pioneering; opening a new path in a field of knowledge. A theory that challenged everything we knew broke new ground, so it was a groundbreaking theory. "A" is used because "groundbreaking" begins with a consonant sound.
Example: Her groundbreaking research changed the treatment of malaria.
Why the Other Options are Incorrect?
Option 1: an uppity — Incorrect. Uppity means behaving as if one is more important than one really is; it is used of people and their manners, not of a theory.
Example: The uppity clerk refused to answer our questions.
Option 2: an upright — Incorrect. Upright means standing straight or honest; it does not describe a new and challenging idea.
Example: He is an upright officer who never takes a bribe.
Option 3: an uproarious — Incorrect. Uproarious means very noisy or extremely funny; it does not fit a scientific theory.
Example: The comedian's jokes drew uproarious laughter.
The following words have also been asked in other CUET (UG) English papers:
| Word | 2026 | 2025 | 2024 | 2023 | 2022 |
|---|---|---|---|---|---|
| uproarious | – | – | – | 18-06 S1 | – |