Weaknesses of the definition
Feasibility: The criteria outlined by Jahoda makes ideal mental health (normality) practically impossible to achieve. This means that the majority of the population, using this definition, would be abnormal.
Ethnocentrism: The criteria of autonomy makes the collectivist cultures, where the greater good and helping / relying on others is encouraged, seem abnormal. As most western cultures are individualist the criteria outlined by Jahoda seem a reasonable fit, but non-western cultures cannot relate to the criteria she outlines. This means that the definition is not global.
Subjectivity: The criteria that Jahoda stipulates are vague and are therefore very difficult to measure. This makes the decision as to whether someone fulfils the criteria difficult to make.