Abstract
In this article various kinds and peculiarities of idiolect antonymy that is opposition of
opposites that are revealed as a regular reproduced ones in typical antonymical contexts in the
speech of only one dialect speaker are considered on the basis of material of one Siberian oldtimer
subdialect of the Middle Ob region. Pairs that include precise ideoantonyms and pairs with
the usage of individual words “sponges” are analyzed. Some peculiarities connected with
asymmetries of idiolect antonyms and nature of their functioning in the subdialect.