1 undomesticated, untamed, unbroken, savage, feral:
The only four-legged animals inhabiting the island were wild pigs.
2 uncultivated, uninhabited, waste, desert, desolate, virgin, unpopulated, empty, trackless, barren, lifeless; deserted:
The cottage overlooks an expanse of wild moorland.
3 savage, uncivilized, barbarous, primitive, rude, uncultured, uncultivated, brutish, barbaric, fierce, ferocious:
Some early explorers studied the wild people they encountered in far-off lands.
4 uncontrolled, unrestricted, unrestrained, untrammelled, unbridled, unfettered, unshackled, free, unchecked, lively, impetuous, unconventional, undisciplined, disobedient, insubordinate, self-willed, wayward, mutinous, rowdy(ish), boisterous, unruly, tumultuous, turbulent, tempestuous, uproarious; uncontrollable, unmanageable, ungovernable, intractable, unrestrainable:
Peter led quite a wild youth. We cannot cope with their wild behaviour after they have had too much to drink.
5 mad, maniac(al), crazed, crazy, irrational, distracted, frenzied, frantic, distraught, hysterical, raving, raging, unhinged, demented, delirious; berserk; run amok or amuck:
William had a wild look about him. Nellie has been driven wild by the pressures of business.
6 exciting, excited, vehement, passionate, romantic, turbulent, chaotic, tempestuous, reckless, madcap:
At the time, Ernest was having a wild love affair with Charles's widow.
7 absurd, irrational, unreasonable, extravagant, fantastic, imprudent, foolish, foolhardy, impractical, impracticable, unpractical, unworkable, ridiculous, reckless, silly, giddy, flighty, madcap, outrageous, preposterous, bizarre, strange, odd, peculiar, Colloq offbeat:
He lost thousands on some wild scheme for reducing shipping costs by filling bubble packing with helium.
8 tousled, wind-blown, unkempt, dishevelled, untidy, disordered, disorderly, messed-up, Colloq mussed-up:
Her hair was in wild disarray.
9 enthusiastic, avid, eager, agog, Colloq crazy, mad, daft, dotty, Brit potty, Slang nutty, nuts:
I'm just wild about Harry, And Harry's wild about me.
10 Usually, wilds. wasteland, wilderness, desert, vastness, emptiness, Colloq sticks, middle of nowhere, back of beyond:
His idea of adventure was to trek through the wilds of Hyde Park.