Step-by-step Solution:

The word vagabond refers to someone who wanders from place to place without a permanent home, often leading an unsettled or aimless life. To find the antonym, we need a word that conveys the opposite of this idea — someone or something stable and fixed. Let us analyze the options: (a) unsettled - This is a synonym of vagabond, not an antonym. It means not fixed or unstable.\[\] (b) fly-by-night - This refers to someone unreliable or transient, similar in meaning to vagabond, so it is not an antonym.\[\] (c) aimless - This is another synonym of vagabond, describing a lack of direction or purpose.\[\] (d) permanent - This is the correct antonym. It means fixed, stable, or enduring, which is the opposite of a vagabond.\[\] \[\] Correct Answer: (d)