给出以下5个词的同义词。


fortunate, marvelous, perplexing, tenacious, ubiquitous
unfortunate: unlucky, hapless, unlucky

marvelous: fantastic, wonderful, amazing

perplexing: confusing, baffling, puzzling

tenacious: persistent, determined, resolute

ubiquitous: omnipresent, pervasive, ever-present