wild
noun
a wild primitive state untouched by civilization
“he lived in the wild”
“they collected mushrooms in the wild”
a wild and uninhabited area left in its natural condition
“it was a wilderness preserved for the hawks and mountaineers”
Synonymswilderness
adjective
marked by extreme lack of restraint or control
“wild talk”
“wild parties”
Oppositestamein a natural state; not tamed or domesticated or cultivated
“wild geese”
“edible wild plants”
SynonymsuntamedOppositestamein a state of extreme emotion
“wild with anger”
“wild with grief”
deviating widely from an intended course
“a wild bullet”
“he threw a wild pitch”
(of colors or sounds) intensely vivid or loud
“a violent clash of colors”
“her dress was a violent red”
Synonymsviolentwithout a basis in reason or fact
“baseless gossip”
“the allegations proved groundless”
talking or behaving irrationally
“a raving lunatic”
Synonymsraving madinvolving risk or danger
“skydiving is a hazardous sport”
“extremely risky going out in the tide and fog”
fanciful and unrealistic; foolish
“a fantastic idea of his own importance”
Synonymsfantasticlocated in a dismal or remote area; desolate
“a desert island”
“a godforsaken wilderness crossroads”
intensely enthusiastic about or preoccupied with
“crazy about cars and racing”
“they are dotty about each other”
without civilizing influences
“barbarian invaders”
“barbaric practices”
(of the elements) as if showing violent anger
“angry clouds on the horizon”
“furious winds”
adverb
in an uncontrolled and rampant manner
“weeds grew rampantly around here”
Synonymsrampantlyin a wild or undomesticated manner
“growing wild”
“roaming wild”
Source: WordNet 3.1, Princeton University