► We examine linguistic behavior of maximizers and approximators. ► These modifiers should combine with absolute adjectives, but not with relative ones. ► Also, an adjective modifier combination should show a stable rating across contexts. ► However, the same combination is judged differently in different contexts. ► Therefore, linguistic behavior does not allow for a classification of adjectives. Respondents are more likely to disagree with negative survey questions ( This text is boring. Yes/ No) than to agree with positive ones ( This text is interesting. Yes/ No). The size of this effect, however, varies largely between word pairs. A semantic classification of adjectives in closed scale/absolute and open scale/relative types was predicted to explain this variation. To classify survey adjectives, a judgment experiment was conducted. Language users ( N = 173) rated sentences in which an adjective was modified by the maximizer completely or the approximator almost: it should be possible to combine closed scale/absolute adjectives with these modifiers, in contrast to open scale/relative adjectives for which this is not the case. Results show that language users agree on which adjective and degree modifier combinations are acceptable and which combinations are unacceptable. Moreover, the two methods, almost and fully, show convergent validity. However, the rating of the same combination of a specific adjective and a specific degree modifier varies across contexts. This suggests that neither of the two methods allows for an unambiguous classification of adjectives. Hence, the distinction between closed scale/absolute and open scale/relative adjectives cannot explain variation in survey response effects. For semantics and pragmatics results indicate that context plays a crucial role in the linguistic behavior of adjectives and degree modifiers.