alluring, appealing, attractive, bewitching, captivating, charismatic, charming, elfin, enchanting, engaging, entrancing, fascinating, fetching, glamorous(also glamourous), luring, magnetic

absorbing, arresting, engrossing, enthralling, galvanic, gripping, hypnotic, hypnotizing, mesmerizing, riveting, spellbindingenticing, tantalizing, temptingexciting, haunting, interesting, intriguing, titillatingbeckoning, inviting, winningdarling, delightful, pleasant, pleasing

repellent(also repellant), repelling, repugnant, repulsive, revolting, unalluring

boring, irksome, tedious, tiresome, wearisomeabhorrent, abominable, appalling, awful, distasteful, hideous, horrendous, horrible, horrid, invidious, loathsome, nauseating, noisome, obnoxious, odious, offensive, shocking, sickeningdrab, dreary, dull, flat, humdrum, jading, leaden, monotonous, pedestrian, ponderous