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

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