Lovelier means more beautiful or more pleasing. Lovelier than the first, gets lovelier, lovelier still.
It is the comparative of lovely, with the y turning to i as it does in prettier and happier. Lovely is warm and British and covers everything from a face to a cup of tea, which is why lovelier can be said of almost anything. Note loveliest; and that lovely is love plus -ly.
1adjectivelovelierMore beautiful or more pleasing.
“The garden looks even lovelier in spring, when all the flowers are out.”
lovelier is a comparison of beauty.