The word "Abecedary" refers to something related to the alphabet or basic principles of language. Its antonyms would be words that describe things unrelated to language, such as non-alphabetic, illiterate, innumerate, unschooled or uneducated. Alternatively, words that denote a complex or advanced level of language, like erudite, articulate, sophisticated or eloquent, can also be considered as antonyms for "Abecedary". These antonyms highlight the contrast between basic knowledge and advanced skills, and reflect the need for lifelong learning and intellectual growth. By expanding their vocabulary and enhancing their linguistic skills, individuals can move beyond the Abecedary level and communicate more effectively in various contexts.