vastupidiebausaldusväärselt

Vastupidiebausaldusväärselt is an Estonian word that describes a state or quality of being unreliable to a great extent. It is an adverb, modifying verbs or adjectives to indicate that an action or characteristic is performed or possessed in an unreliable manner, and this unreliability is significant. The word is formed by combining "vastupidi" (opposite, contrary) with "ebaausus" (dishonesty, unreliability) and the adverbial suffix "-lt" (ly). Therefore, it literally translates to something akin to "contrary to trustworthiness" or "in an opposite-to-reliable way."

The term implies a deliberate or habitual tendency to act in ways that are not dependable or trustworthy. It suggests a situation where one cannot count on something or someone due to their consistent lack of reliability. This can apply to people, systems, information, or any entity whose performance or truthfulness is in question. For example, a weather forecast that is consistently wrong could be described as vastupidiebausaldusväärselt inaccurate. Similarly, a person who frequently breaks promises might be acting vastupidiebausaldusväärselt. The degree of unreliability is emphasized by the "vastupidi" component, indicating a strong deviation from what would be considered reliable.