10
obsessional
9
compulsive(adjective, anxious, disturbed, fearful, distraught)
8
neurotic(adjective, anxious, fearful, preoccupied, hacked)
5
fanatic(noun, adjective, keen, passionate, enthusiastic)
5
fanatical(adjective, keen, passionate, enthusiastic, excited)
5
haunting(adjective, eerie)
5
passionate(adjective, keen, violent, enthusiastic, excited)
4
feverish(adjective, passionate, violent, excited, nervous)
4
fixated(adjective, passionate, anxious, fervent, fearful)
4
frenetic(adjective, keen, passionate, enthusiastic, excited)
4
paranoid
4
possessing
4
weird
3
addicted(adjective, passionate, fervent, zealous, dedicated)
3
contumacious(adjective, fervent, persistent, obstinate, zealous)
3
frightful
3
mysterious
3
narrow-minded(adjective, fervent, persistent, obstinate, zealous)
3
persistent(adjective, obstinate, insistent, dogged)
3
psychoneurotic(adjective, anxious, disturbed, fearful, distraught)
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APASmart Define. (2015). obsessive thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/obsessive/thesaurus/synonyms
ChicagoSmart Define. 2015. "obsessive thesaurus" https://smartdefine.org/obsessive/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, obsessive thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/obsessive/thesaurus/synonyms>.
MLASmart Define. "obsessive thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/obsessive/thesaurus/synonyms>