Synonyms of infestive

1 Syllable
mean, hard, tough, trying, rough
2 Syllables
heavy, troublous, painful, taxing, worrying, pesky, tricky, vexing, annoying, arduous, wicked, messy, murder, ugly, uphill
3 Syllables
laborious, demanding, alarming, disquieting, damaging, difficult, irksome, dangerous, upsetting, vexatious, harassing, unruly
4 Syllables
intractable, repressive, oppressive, pestiferous, pestilential, wearisome, burdensome, inconvenient, irritating, troublesome, problematic, tiresome, refractory
5 Syllables
ungovernable, importunate