gnarly

Having or characterized by gnarls; gnarled.

Out of one window I can see the garden, those mysterious deep-shaded arbors, the riotous old-fashioned flowers, and bushes and gnarly trees.

Excellent; attractive.

There ain't nothing gnarlier (apparently) than slapping on some brightly coloured sunblock to ward off the blinding spectre of dangerous, snow-reflected sunlight.

Dangerous; difficult.

a gnarly problem

When the swell struck, the North Shore got gnarly, and the wise ones hit the outer islands where the energy was just as juicy but a bit more organized.

Unpleasant, awful, ugly.

We're not talking about a lame chick and a gnarly guy. We're talking about a couple of far-out dudes.

Funky Kong: 'Those Snowmads are a gnarly bunch! I hear they're enjoyin' your island. Go get 'em, DK!'

Unpleasant, awful, ugly.

[She] displays the same love of gnarly fuzztones and shout-it-out-loud choruses that began back in her daze^([sic]) with local all-girl rockers the Runaways.