Finding the One-Word Substitute for "Mark or Substance that is Impossible to Remove"

The question asks for a single word that can replace the phrase "Mark or substance that is impossible to remove". This is a common type of vocabulary question that tests your understanding of word meanings and synonyms.

Let's examine each of the given options to determine which one best fits the definition provided.

Analyzing the Options for "Impossible to Remove"

• Stained: This word describes something that has been marked or discolored by a substance. For example, a coffee stain on clothes. While stains can be difficult to remove, the word "stained" itself does not imply that the mark is *impossible* to remove.
• Smudge: A smudge is a dirty mark or smear, typically made by rubbing something. Smudges are usually quite easy to remove, the opposite of what the phrase describes.
• Incredible: This word means impossible to believe, astonishing, or extraordinary. It is used to describe something that is amazing or hard to accept as true. It has no relation to marks, substances, or their removal.
• Indelible: This word is defined as "(of ink or a pen) making marks that cannot be removed" or "(of a feeling or memory) not able to be forgotten or removed". The primary meaning, especially in the context of a physical mark or substance, aligns perfectly with the idea of something being "impossible to remove".

Identifying the Correct One-Word Substitute

Based on the analysis of the options, the word that precisely means "impossible to remove" when referring to a mark or substance is "Indelible". The other options describe types of marks or something unbelievable, but none convey the sense of permanence or impossibility of removal as strongly as "Indelible".

Revision Table: Understanding Word Meanings

Therefore, "Indelible" is the correct one-word substitute for "Mark or substance that is impossible to remove".

Additional Information on Indelible Marks and Vocabulary

The word "indelible" is often used for types of ink that are designed not to wash away or fade easily, like ink used for official documents or permanent markers. It can also be used metaphorically to describe memories or experiences that cannot be forgotten.

Learning one-word substitutes is an important part of enhancing your English vocabulary for competitive exams. It helps you express complex ideas concisely.

Other words related to permanence might include permanent, lasting, enduring, or fixed, but "indelible" is specifically used for marks or effects that are impossible or very difficult to remove or forget.