What is the rule for comparison adjectives when the adjective ends in a silent e?

Answer 1

Do you mean how do you make the adjective comparative? If so, for example, the adjective "white" would be "whiter". The rule would actually be "Drop the "e" and add "er".

Answer 2

Truly silent E

In some common words that historically had long vowels, silent E no longer has its usual lengthening effect: come, done. This is especially common in some words that historically had 'f' instead of 'v', such as give and love; in Old English, /f/ became /v/ when it appeared between two vowels (OE giefan, lufu), while a geminated 'ff' lost its doubling to yield /f/ in that position. This also applies to a large class of words with the adjective suffix '-ive', such as captive, that originally had '-if' in French.

Some English words vary their accented syllable based on whether they are used as nouns or as adjectives. In a few words such as minute, this may affect the operation of silent E: as an adjective, minúte has the usual value of 'u' followed by silent E, while as a noun mínute silent E does not operate. See initial-stress-derived noun for similar patterns that may give rise to exceptions.

Answer 3

I dont think there is one and if there is i apoligize for not taking advanced english.