an impulse
A whim is, essentially, a passing impulse. Whims would be the plural of the word whim. Whims means passing impulses.
I had a sudden whim to take a midnight walk.
A conclusory statement without the benefit of objective support. Whereas an opinion is a conclusory statement WITH objective supporting fact or facts.
guided by whim, sudden moods of behaviour
Caprice means a sudden and unpredictable change especially in a person's mood or behavior. Whim is a synonym of caprice.
The definition of the word 'whim' is: A sudden or capricious idea; an impulse thought or arbitrary. Used as a sentence; "He decided, more or less on a whim, to take a vacation to Cancun, Mexico."
Irony is a literary device where there is a contrast between what is expected and what actually occurs. Wit is clever and humorous language, often used to make a point or entertain. A wig is a head covering made from human or synthetic hair. A whim is a sudden desire or impulse. Therefore, the correct answer to your question is that irony is the most closely related term to wit, as both involve language and communication, while wig and whim are unrelated in terms of meaning and usage.
anxious or anxiousness :)
I decided to go shopping on a whim.
Whim W'Him was created in 2009.
An example of a sentence is: I went to visit him on a whim.
She bought the dress on a whim, without thinking about whether she actually needed it.