The word favorable describes something positive or promising, such as a two-thumbs-up movie review or the perfect conditions for golf.
When things are going well, or in your favor, they’re favorable. Favorable is an adjective that describes approval or good conditions for something. If you wrote a book, you’d want the reviews to be favorable. If the weather is favorable, it's sunny out and perfect for a picnic. If you wanted to go swimming, thunderstorms would be unfavorable: they would ruin your plans. Favorable situations make us smile.