The jumbled letters of a meaningful English word are given as YPCUIAT. Rearrange these letters to form a meaningful word and select the alternative that is almost opposite in meaning (antonym) to it.

1. Unjumble the letters: Rearranging the letters YPCUIAT gives the meaningful word PAUCITY.
2. Determine the meaning: 'Paucity' means the presence of something only in small or insufficient quantities or amounts; a scarcity or shortage.
3. Find the opposite meaning: The antonym of scarcity or shortage is an abundance or excess, which matches with Surplus.