What are the opposite words for additional?

Antonyms for the word "additional" include words such as "essential," "primary," and "integral," which suggest a sense of necessity or intrinsic value. Other antonyms may include words like "subtracted," "reduced," or "minimal," which imply removal or reduction rather than addition. Still other antonyms, such as "basic" or "foundational," may suggest a starting point or fundamental importance, rather than an additional layer or supplement. By understanding antonyms for "additional," one can gain a better sense of the different nuances and implications of language, and communicate more effectively in a variety of contexts.

Antonym of the day

bi lateral
multilateral, unilateral, detached.