Adverbs for Mercurial

irrationally; unreasonably; vivaciously; fascinatingly; temperamentally; unstably; merrily; erratically; waywardly; vagrantly; restlessly; nomadically; lightly; interestingly; blithely; capriciously; delightfully; captivatingly; nimbly; actively; captiously; wantonly; cheerfully; changefully; inconstantly; craftily; unpredictably; problematically; perplexingly; casually.