Словарь синонимов английского языка - occasional

(adj) 1. intebmittent, irregular, periodic, random, sporadic, infrequent, casual, incidental: They staged occasional raids on the arsenal. He works as an occasional farm hand. 2. additional, extra, spare, supplementary, incidental, auxiliary, accessory: We bought a few occasional chairs in case we have company. 3. special, particular, ceremonial, ritual: She writes occasional verses for memorial services.