Unaffordably is an adverb that describes something that cannot be bought, paid for, or acquired within one's budget. Some synonyms for this word include extravagantly, exorbitantly, prohibitively, expensively, beyond one's means, and beyond one's pocket. Extravagantly suggests spending in a wasteful or excessive manner. Exorbitantly means demanding too much or being highly excessive. Prohibitively implies that an item is priced so high that it prevents one from buying it. Expensively means requiring a significant amount of money. Beyond one's means and beyond one's pocket both convey the notion of something being too expensive for someone to afford.