The word 'wast arbitrary' does not exist in the English language. However, if we break it down into its components, 'wast' means 'to be' and 'arbitrary' means 'based on random choice rather than reason or system.' Hence, the antonyms for 'arbitrary' would be 'logical,' 'systematic,' 'rational,' 'planned,' and 'orderly.' These words imply a process that operates on well-defined principles, rather than whim or chance. In contrast, antonyms for 'to be' could include 'not existent,' 'nonexistent,' 'vanished,' or 'missing,' which would convey a sense of absence or void. Thus, the concept of 'wast arbitrary' lacks meaning, but its components present antonyms of varying connotations.