Se presenta una revisión bibliográfica para la delimitación conceptual del Neuroticismo del Modelo de los Cinco Factores. Este dominio refleja la disposición a experimentar afectos negativos de manera intensa y/o prolongada. La estructura de 6 facetas de Costa y McCrae (1992) cuenta con gran aceptación pero presenta cuestionamientos insoslayables (Simms, Williams, & Simms, 2017; Widiger, 2009). Se efectuaron comparaciones con operacionalizaciones que definen 3 (Soto & John, 2016), 4 (Hutz & Nunes, 2001; Taylor & DeBruin, 2006), 5 (Aguado, Ponte, & Arranz, 2008; Saucier, 2002; Simms, 2009) y 9 facetas (Hofstee, deRaad, & Goldberg, 1992). Ansiedad y Depresión aparecen con mayor frecuencia en los modelos. Hostilidad e Impulsividad son discutidas argumentando cercanía conceptual a otros dominios. Se identificaron facetas denominadas Labilidad del ánimo, Dependencia y Envidia, aunque Costa y McCrae las considerarían subsumidas en Depresión, Vulnerabilidad y Hostilidad respectivamente. Algunos autores reconocen que la complejidad los obliga a ser parsimoniosos (Caprara, Barbaranelli, Borgogni, & Vecchione, 2007; DeYoung, Quilty, & Peterson, 2007) y proponen sólo 2 facetas amplias que remiten a la caracterización de conductas internalizantes y externalizantes (Krueger & Tackett, 2003). Resulta imperioso consensuar el contenido de las facetas porque esto origina diferencias considerables en la medición del dominio. Palabras clave Neuroticismo, Estabilidad emocional, Modelo de los Cinco grandes, Modelo de los Cinco Factores ABSTRACT FACETS OF NEUROTICISM. THEORETICAL ACCORDS AND DISACCORDS IN THE FIVE FACTORS MODEL A literature review is presented for the conceptual delimitation of the Neuroticism of Five-Factor Model. This domain refers to the tendency to experience intense and prolonged negative feelings. The structure of 6 facets of Costa and McCrae (1992) has great acceptance but presents unavoidable criticisms (Simms, Williams, & Simms, 2017; Widiger, 2009). Comparisons were made with operationalizations that define 3 (Soto & John, 2016), 4 (Hutz & Nunes, 2001, Taylor & DeBruin, 2006), 5 (Aguado, Ponte, & Arranz, 2008, Saucier, 2002; Simms 2009) and 9 facets (Hofstee, deRaad, & Goldberg, 1992). Anxiety and Depression that appear more frequently in the models. Hostility and Impulsiveness are discussed arguing conceptual closeness to other domains. Facets labelled Mood-lability, Dependence and Envy were identified, although Costa and McCrae would be considered subsumed in Depression, Vulnerability and Hostility respectively. Some authors acknowledge that complexity forces them to be parsimonious (Caprara, Barbaranelli, Borgogni, & Vecchione, 2007; DeYoung, Quilty, & Peterson, 2007) and propose only 2 broad facets that refer to the characterization of internalizing and externalizing behaviors (Krueger & Tackett, 2003). It is imperative to accord the content of the facets because this causes considerable differences in the measurement of the domain. Key words Neuroticism, Emotional Stability, Big five Model, Five Factor, Model