SPELLBINDINGLY
Scrabble letter values: S1P3E1L1L1B3I1N1D2I1N1G2L1Y4 = 23
Definition
SPELLBINDINGLY is the adverb form of SPELLBINDING.
adjective SPELLBINDING: attracting and holding interest as if by a spell.
Synonyms of SPELLBINDING: hypnotic, mesmeric, mesmerizing