The word "wast inadequate" suggests an insufficiency or deficiency in something. Its antonyms would be words that convey abundance, sufficiency, or adequacy. Some antonyms for "wast inadequate" include ample, sufficient, satisfactory, adequate, plentiful, and enough. These words indicate something that is enough or more than enough to meet a particular need or purpose. For example, a solution that is sufficient to solve a problem can be considered an antonym for wast inadequate. Similarly, a resource that is abundant or plentiful can be considered an antonym for wast inadequate. By using these antonyms, one can convey a sense of completeness and satisfaction with a particular situation.