Synonyms to unshakeable

obsessive, absorbing, all-encompassing, arresting, attractive, compelling, compulsive, consuming, controlling, dominating, driving, enchanting, engaging, engrossing, enthralling, fascinating, gripping, harassing, haunting, holding, hypnotic, impelling, indelible, magnetic, mesmeric, mesmerizing, nagging, obsessing, obsessional, passionate, persistent, possessing, preoccupying, recurrent, spellbinding, tormenting, unforgettable, unshakable, constant, abiding, accordant, active, age-long, aged, ageless, alike, ancient, antique, ardent, articulated, assiduous, atom, atomic mass, atomic number, atomic weight, automatic, balanced, beaten, catenated, ceaseless, changeless, chattering, chronic, clinging, close, coeternal, colorfast, committed, compliant, concatenated, confirmed, conforming, connected, conscientious, consistent, consonant, continual, continued, continuing, continuous, correspondent, cyclical, dateless, dedicated, deep-dyed, delicate, dependable, determined, devoted, devout, diligent, direct, diuturnal, dogged, double-dyed, durable, duteous, dutiful, dyed-in-the-wool, endless, enduring, e