The question asks us to find the most appropriate single word that can replace the underlined phrase "completely lifeless and unresponsive" in the given sentence:

The heavy medications and strong drugs at the sanatorium will surely turn a patient completely lifeless and unresponsive.

Understanding the Sentence Context and Phrase Meaning

The sentence describes a patient receiving heavy medications and strong drugs at a sanatorium. The effect of these treatments is described as making the patient "completely lifeless and unresponsive". This phrase implies a state where the patient shows no signs of life or reaction, similar to being dead or in a deep coma-like state induced by the medication.

• Lifeless: Without life; appearing dead or inanimate.
• Unresponsive: Not reacting to stimulation or external input.

Combined, "completely lifeless and unresponsive" suggests a state of profound inertness, lack of vitality, and inability to react to anything.

Analyzing Vocabulary Options for Substitution

Let's examine the provided options to see which word best fits the meaning of "completely lifeless and unresponsive" in this context.

• cadaverous: This word is derived from "cadaver," meaning a dead body. "Cadaverous" means resembling a corpse, typically in being pale, thin, or gaunt. While it often describes physical appearance associated with death or severe illness, it strongly implies a state that is like being dead, fitting the idea of being "lifeless and unresponsive".
• zonic: This word relates to a zone. It has no connection to the state of being "lifeless and unresponsive".
• tombic: This word is not a standard English term. While it relates to "tomb" (a grave or burial place), "tombic" does not mean "lifeless and unresponsive".
• wasted: This word typically describes someone who is thin and weak, especially from illness or lack of nourishment. A "wasted" person is alive but physically diminished. It does not mean "lifeless and unresponsive".

Why 'Cadaverous' Substitutes 'Lifeless and Unresponsive'

Comparing the options, "cadaverous" is the only word that conveys a state resembling death or a corpse, which aligns with the idea of being "completely lifeless and unresponsive". The heavy medications are causing the patient to appear and behave as if dead or nearly dead. Therefore, "cadaverous" is the most appropriate substitute for the underlined phrase.

Here is a summary comparison:

Based on the analysis, the word that best substitutes "completely lifeless and unresponsive" is cadaverous.

Revision Table: Vocabulary Focus

Additional Information: Word Substitution in Context

Word substitution questions test your vocabulary and ability to understand context. To solve them effectively:

• Read the sentence carefully and understand its overall meaning.
• Identify the exact phrase or word being underlined.
• Determine the precise meaning of the underlined part within the sentence's context.
• Examine each option provided.
• Consider the definition of each option and how well it fits the meaning and tone of the original phrase in the sentence.
• Eliminate options that clearly do not fit.
• Choose the option that is the closest and most appropriate synonym in the given context.

Sometimes, multiple words might seem similar, but paying close attention to the nuances of meaning and the specific context is crucial for selecting the best substitute word.