Buoy

Cherubic

Ebullient

Effulgent

Equanimity

Cavort

Convivial

Egalitarian

Flapdoodle

Fletcherize

Fortuitous

Inspirit

Jubilant

Kinesthetic

Saturnian 

Snuggery

Tantivy

Vermilion

Galvanic

Violescent

Tenable

Heliotropic 

Snarky

Vexation

Phantasmagoric

Wizen

Arioso

Vaticinate

Pantheon

Arcane

Meliorism

Antic

Xenial

Crucible

Pensée

Transcendent

Selcouth

Cantrip

Extol

Gumption

Quizzical

Rubricate

Sklent

Pandiculation

Pizzazz

Logophile

Proceleusmatic

Prismatic

Esperance

Gourmand

Agog

Zhuzh

Vamoose

Pulchritudinous

Skookum

Eudemonia

Bonanza

Jammy

Susurrus

Zetetic

Gallimaufry

Jouissance

Gambol

Dulcify

Eyesome

Noetic

Joie de Vivre

Frabjous

Iwis

Fress

Inscape

Lexicality

Mavourneen

Amaranthine

Xanthic

Words that remarkably work both back *and* frontways: kayak, deed, noon, rotator, racecar