Synonyms and related words :
captious, carping, caviling, censorious, critic, critical, cynical, faultfinding, hairsplitting, hypersensitive, morbidly sensitive, nagging, niggling, overconscientious, overcritical, overfastidious, overmeticulous, overnice, overparticular, overprecise, overrefined, overscrupulous, oversensitive, oversqueamish, pettifogging, quibbling, trichoschistic, ultracritical