@mismi,
mismi wrote:Just to clarify: I wanted the dictionary to give me the antonym like they do the synonym and none of them were doing it.
Perhaps the fact that none of them were doing it should start you thinking. Puzzlement is often the doorway to discovery.
The point I want to make is that not every word need necessarily have an antonym, in fact many don't. Some things have opposites: hot/cold, long/short, old/new, up/down, noise/silence, plenty/famine, for example. These are pairs of extremes or alternatives. Others do not, and I don't really think that 'sizzle' does. As Wikipedia so conveniently says:
"In lexical semantics, opposites are words that lie in an inherently incompatible binary relationship as in the opposite pairs male : female, long : short, up : down, and precede : follow. The notion of incompatibility here refers to the fact that one word in an opposite pair entails that it is not the other pair member. For example, something that is long entails that it is not short. It is referred to as a 'binary' relationship because there are two members in a set of opposites. The relationship between opposites is known as opposition. A member of a pair of opposites can generally be determined by the question What is the opposite of X ? ... One usage has antonym referring to both gradable opposites, such as long : short, and (non-gradable) complementary opposites, such as male : female"
I don't think that 'sizzle' is in a pair, other than with 'non-sizzle', which is kind of silly.
Have you been set this as an assignment? Maybe the hoped-for outcome is for you to show that you have thought about the question, rather than just ploughed through some dictionaries looking for the 'antonym' sections of definitions.