Spanish is one of the most powerful languages, it is spoken by a great number of people in the world, even this fact there are a lot of moments of incomprehension during the conversation. It appears because of different meanings that may contain the same word. These meanings vary depending on the area where it is used and type of the conversation, it could be formal or informal. The objective of this investigation is: to analyze the specific formation and use of adjectives in Spanish of Mexico, Peru y Chile, including the excessive use of diminutives and augmentatives; to analyze the subjective message of the adjectives that we use in informal conversations.