hairier
hair-i-er
adjective
Having more hair, or being more difficult, dangerous, or complex than before.
"The second climb was much hairier than the first."
Thesaurus
Synonyms: pilose, snake-haired, curly-haired, hoary, comate, wooly, silver-haired, pilous, sericeous, wiry, woolly, tomentous
Antonyms: hairless