burdening, dashing, dejecting, depressing, getting down, oppressing, saddening, weighing down

ailing, distressing, troublingafflicting, tormenting, torturingdaunting, demoralizing, discouraging, disheartening, dismaying, dispiriting, getting down, unnervingagitating, bothering, concerning, discomforting, discomposing, disquieting, disturbing, exercising, freaking (out), perturbing, undoing, unhinging, unsettling, upsetting, worrying

brightening, buoying, cheering (up), gladdening, lightening, rejoicing

animating, enlivening, invigoratingassuring, comforting, consoling, reassuring, solacing, soothingexciting, inspiring, stimulatingelating, exhilaratingencouraging, hearteningdelighting, gratifying, pleasingboosting, elevating, lifting, uplifting