Cuckold fantasies spring from basic fears of emasculation and, ultimately, failure to succeed in the evolutionary imperative of mating and reproduction. Generally speaking, there is a lot of psychological freight that comes with manhood, and a lot of investment of ego. There is, therefore, a lot of fear. Cuckold fantasies eroticize that fear, a well-established coping strategy for the psyche. Unhealth aside, cuckold is a fetish word that has been popular since the 1990's; the fetish itself goes back much further I am sure. This is a fetish where a husband or wife get pleasure and excitement from watching the other partner have sex with someone else.
average man.... no.
The female variant of cuckold is cuckquean. However, it should be noted that the connotations of cuckoldry are currently taken to two extremes. There are some men who abhor the idea of being made a cuckold whilst there are others who relish this experience. A man who is a willing cuckold is called a wittol, but the term cuckold is used in fetish circles. (The pleasure of being made a cuckold can either come from the sadomasochistic humiliation of being "forsaken" or from the opportunity to "share" the experience in the form of an open relationship.)
I don't know of one single word that is an antonym for cuckold. Cuckold means a man whose wife is unfaithful to him. So the antonym of that would be a man whose wife is faithful to him. Alternatively there is also the "Bull" - which is the supposed term often used for that "other" man, especially if it is frequently the same other man - essentially making him the opposite to the submissive, rejected/humiliated, relationship bonded cuckold. A cuckold is, in strict usage, a male by definition (although in fetish usage a cuckold can be either sex.) A female cuckold is a "cuckquean."
A cuckold is a man whose wife is not faithful to him. It is considered an embarrassing and unmanly situation.
A husband is a man who is married. A cuckold is a married man whose wife/partner is sexually active another man (or other men). The adding of "husband" to cuckold is reundant, strictly speaking, as all cuckolds are husbands. However, in contemporary usage, cuckolding is also a BDSM feitsh in which one partner gets a masochistic thrill from the other partner's "non-monogamy." In this feitsh the "cuckold" need not be married, so the term "cuckold husband" is sometimes used to indicate the marital bond.
Cuckold is a noun meaning a man who is married to an unfaithful wife. Cuckold is also a verb meaning to make a cuckold of. Example sentences: In some Greek myths, Zeus cuckolded men with beautiful wives. In Shakespeare's play, Othello was convinced that he was a cuckold. Guinevere and Lancelot cuckolded King Arthur. Only the wittol knows he is no cuckold.
The term is a cuckold.
No, you are wrong.
Some common words used to identify a cuckold include "cuck," "beta male," "cuckquean" (female equivalent), or "wittol" (historical term).
In traditional usage a cuckold is a man who's wife/girlfriend engages in sexual activity with another male. In word connotes that the cuckold is deceived and unwilling (as opposed to a "wittol," meaning a knowing cuckold reconciled to the situation.) It appears often in medieval, Elizabethan, and Restoration literature and is also used in legal proceedings in many English speaking countries. In contemporary usage it is also common in the BDSM fetish community to denote a fetish in which a person (usually but not always male) gets a masochistic sexual thrill from their partner having sex with another person. In this usage a "cuckold male" would be a man who has such a fetish. (The use of the term "cuckold" for women with analogous masochistic inclinations is rarer but not unheard of.)
An Acteon is an obsolete slang term for a cuckold, a man married to an unfaithful wife.
Most men would not and, indeed lack of consent is part of the word's meaning. However a husband who was unable to impregnate his wife might make this choice. A man who wants his wife to be unfaithful to him, or at least consents to it is a wittol, not a cuckold. However, the word cuckolding is increasingly used in fetish circles for couples incorporate female infidelity into their relationship as a sexual kink. (The conceit of the BDSM variant game being that the cuckold in some form wishes he weren't cuckolded.) Why someone would want to be a cuckold in this fetish sense of the word is the same as why anyone would want to engage in sexual submission games - the eroticization of fear. In this case the fears involve emasculation and failure to live up to societal ideas of manhood.