I have recently been researching the usage of the word 'But' with specific attention given to its function as a coordinating conjunction, wherein it is used to create contrast. Throughout my research, I have often encountered the terms 'Denial of Expectation' and 'Semantic Opposition' (see this paper for reference). These are believed to be two of the central functions of 'but,' with another notable function being the 'Corrective' usage.
In Denial of Expectation, there is a distinction made between direct and indirect denial of expectation. In the former, the rejection of the proposition is made clear in the second conjunct, which negates the proposition of the first conjunct. In the latter, there is an entirely unspoken proposition that must be identified from the context.
Here are two examples (the unspoken expectations and denials are highlighted in square brackets):
- He was tall [he was good at basketball], but he wasn't good at basketball. (Direct)
- We were hungry [we ate], but all the restaurants were closed [we didn't eat]. (Indirect)
Now, my question relates specifically to semantic opposition, which is described as a contrast created by antonyms in each of the two conjuncts.
See an example below (the antonyms are italicised):
- Bill was tall, but Tim was short.
In the papers I've read, the examples given always seem to be overt in their opposite relationship, using antonyms like happy/sad, tall/short, etc. However, they never seem to address implicit opposite relationships between unlike constituents—a noun phrase and an adjective phrase, for example.
Here are two examples of what I mean:
- Loud music is terrible, but quiet music is what I live for.
- Loud music is terrible, but I love quiet music.
In 4 and 5, I would argue that they fit the description of semantic opposition, but they don't have conventional pairs of antonyms. The contrast in 4 is created between 'terrible' and 'what I live for' (the latter of which infers 'not terrible'); in 5, between 'terrible' and 'love' (the latter again infers 'not terrible'). Is this analysis correct? If so, why are examples like these not usually emphasised?
Edit:
Here are two real-life examples similar to 4 to illustrate their real-life usage:
- The Sydney Opera House is great, but this work [another piece of architecture] is some kind of miracle.
- Ninety percent of the people I've talked to really like it, but some have concerns about the height.