because the comparative form of words with two or more syllables ending to y is made by changing y to i and adding er (heavy-heavier) and snowy has two syll. (Snow.Y)
The comparative form of many is more
The comparative form of "central" is "more central."
The comparative form of "softly" is "more softly."
The comparative form of "courageous" is "more courageous."
The comparative form is "more serious"; the superlative form is "most serious".
The comparative form of in is inner.
"More shyly" is the comparative of "shyly". There is no single word form as with lowlier.
The comparative form of realistic is more realistic
The comparative form of "fragile" is "more fragile."
"More beloved" is the comparative form for "beloved."Specifically, the positive form is "beloved." The comparative form is "more beloved." The superlative form is "most beloved."
The comparative form of bored is more bored
The comparative form of skillfully is more skillfully.