thirdlightest

Thirdlightest is a hypothetical adjective used to describe something that is the third lightest in a given set or comparison. This term is not a standard word in the English language and would typically only be encountered in specific contexts where ranking by weight is being discussed. For instance, in a competition involving three objects where one is the lightest, another is the second lightest, and the remaining one is the third lightest, the adjective "thirdlightest" could be used to identify it.

The formation of "thirdlightest" follows the pattern of superlative adjectives, where a numerical ordinal (like third) is combined with the superlative form of an adjective (lightest). This construction is generally understood, even though it's not commonly used. In practical scenarios, people might use phrases like "the third lightest object" or "the object that is third in lightness" to convey the same meaning. The usage of "thirdlightest" would likely be limited to informal or highly specific technical discussions where brevity is desired and the context makes the meaning unambiguous.