Adjectives Using More And Most

For most longer adjectives use more and the most.

Adjectives Using More And Most. They emigrate because they are looking for a better life. I am more careful on my bike since i fell off it.

Comparative Superlative Adjectives Adjective Onomastics
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Everything is getting more and more expensive. This usually happens when a comparative is not followed immediately by than. Thus, they reject expressions such as more perfect, most unique, and most parallel as illogical pleonasms:

The sign had big, bold, and bright letters.

Your book is much more interesting than my book. (so 'more difficult than' and not 'difficulter than'.) you can use 'much' in the comparison (to show a big difference). For most adjectives of two or more syllables, use 'more' + adjective + than to make a comparison. Grammatical constructions used for comparing adjectives.