In this research, various expressions of ‘delicious’ in Korean are studied, and how deliciousness is expressed in cooking books by cooking specialists, essays by writers, and food shows by tasters is examined. Adjectives with the meaning of deliciousness comprise 8.7% of all tasty adjectives. In Korean, expression ‘Delicious’ is very rare; therefore, ‘delicious’ is expressed in many different ways. Categories of expression for deliciousness are set after investigating and gathering real examples. The categories are “use of core words for deliciousness (taste, tongue, drivel, spit, salivary gland, home-made taste, appetite, aftertaste, sincerity, scent, fragrance, sweet, flavor), sense description (gustatory, olfactory, algesia, vision), cooking and cooking material description, tasting sample and appetite description, recognition and emotion description, figurative situation and rhetorical description (analogy, metaphor, metonymy, allegory, personification), selectivity description, quantitative description, relationship description, integral description. The deliciousness expression method is studied as examples of these ten categories are presented. In the category of gustatory, words for sweet, sour, salty, spicy, and bitter tastes are used for describing deliciousness in context to provide the most objective information of taste. In addition, expressions related to olfactory, algesia, and vision are also used. The integration of two palates and that of one or more categories also appear in various forms. Recently, food shows have become very popular in television. In these shows, tasters(mostly celebrities)’ expressions of deliciousness often seem to lack richness. If casts in many TV shows can express deliciousness in more diverse fashion when tasting samples, the consensus with viewers will broaden more.