Illboding is an adjective that describes something that is ominous or foreboding. The word illboding implies a feeling of impending danger or misfortune. However, not all words are negative, and there are many antonyms for illboding that convey pleasant or positive feelings. Some of the antonyms for illboding are auspicious, propitious, fortunate, favorable, promising, encouraging, and optimistic. These words suggest that good things are likely to happen, and they create a sense of hope and possibility. Using the right antonym can help to shift the tone of a sentence, making it more positive and giving readers a reason to feel optimistic.