The word "more comethrough" implies an abundance or excess of something. Antonyms for this phrase could include "scarcity," "lack," "depletion," "deficiency," "insufficiency," or "shortage." These words all suggest a limited quantity or availability of what is needed or desired. Alternatively, one could use words such as "moderation," "restraint," or "balance" to convey the opposite meaning. These words suggest a sense of control or constraint, where only enough of something is made available in order to avoid waste or excess. Ultimately, the choice of antonym will depend on the context in which the word "more comethrough" is being used.