particularityEnglishOxford American Thesaurusparticularity noun 1 the particularity of each human being: individuality, distinctiveness, uniqueness, singularity, originality, peculiarity. 2 parties must present their case with some degree of particularity: detail, precision, exactness, accuracy, thoroughness, scrupulousness, meticulousness. 3 local and personal particularities: feature, trait, characteristic, idiosyncrasy, peculiarity, quirk, detail, item, circumstance, point, property.