The aim of this paper is a frequency, semantic and communicative-pragmatic analysis of the adjectives in spontaneous non-institutional dialogue communication of the adults in eastern Slovakia. We follow the research of Czech and Slovak linguists and we deal with the data of 80 dialogues from Eastern Slovakia region. The analysis is conducted by the means of the adults’ dialogue typology (Bodnárová, 2012). The results show that adjectival lexis is more frequently used in the dialogues with descriptive features. Then we address more subtle description and explication of the communicative use of some of the most frequent adjectives (good, bad, full, big, small, nice, old). The focus on some semantic groups showed that lot of adjectives is used in the predictable text field and there is a lower tendency to be original or creative. Our material also presents higher frequency and greater range of the adjectives denominating negative qualities and negative adjectival expressive words. The results of our research also propose that in the issue of intensifying – the participants of the communication use exclusively the means of expressing great and the greatest intensity and they use the means of minimalizing rarely. This indicates the dominance of the expressive categories such as notability, power and hyperbolization in the spontaneous dialogue communication of the adults.