When "more" is used before adjective or adverb as "inconvenient" in your example, it is an adverb whose primary function is to modify the following word. However, when it is used before a noun (or sometimes after a noun), it is used as a determiner or adjective. For example: I need more money. More context is required. I need something more (to eat). In the above examples, it means: greater in ...
What's more is an expression that's used when you want to emphasize that the next action or fact is more or as important as the one mentioned. War doesn't bring peace; what's more, it brings more chaos. Or your example.
How to use "what is more"? - English Language Learners Stack Exchange
What's the difference between these types of adjective usages? For example: This is more of a prerequisite than a necessary quality. This is more a prerequisite than a necessary quality. (without ...
more of a ... vs more a - English Language Learners Stack Exchange
To use the correct adjective with the phrase "in detail", think about fewer vs less in number vs amount - but remember "in detail" means specifically or completely already. Examples: I have read your question and answered it "in detail". If you want to read my explanations "in more detail", keep reading. You might find another answer that explains it just as well with fewer details (which ...
phrase usage - "in more details" or "in detail" - English Language ...
The modifies the adverb more and they together form an adverbial modifier that modifies the verb doubt. According to Wiktionary, the etymology is as follows: From Middle English, from Old English þȳ (“by that, after that, whereby”), originally the instrumental case of the demonstratives sē (masculine) and þæt (neuter).