Which word denotes unchangeable?

Which word denotes unchangeable?

• A. Languor
• B. Immutable
• C. Effervesce
• D. Filibuster

Answer: (B)

Recognizing a word that means unchangeable. Immutable is the one that fits because it literally means not able to be changed. It comes from the prefix im- (a negation) attached to mutable, which means capable of changing; together they indicate something that cannot be altered. The other options don’t convey that sense. Languor refers to a state of weariness or lack of energy. Effervesce means to release bubbles or to become lively and enthusiastic. Filibuster is a noun for a tactic used to delay or obstruct legislation. Each of these has a distinct meaning that doesn’t imply being unchangeable.

Recognizing a word that means unchangeable. Immutable is the one that fits because it literally means not able to be changed. It comes from the prefix im- (a negation) attached to mutable, which means capable of changing; together they indicate something that cannot be altered.

The other options don’t convey that sense. Languor refers to a state of weariness or lack of energy. Effervesce means to release bubbles or to become lively and enthusiastic. Filibuster is a noun for a tactic used to delay or obstruct legislation. Each of these has a distinct meaning that doesn’t imply being unchangeable.