Questions & Answers about Hastalık bulaşıcı.
Bulaşıcı is an adjective meaning “contagious.” It’s derived from the verb bulaşmak (“to infect,” “to spread”). By adding the adjective‐forming suffix –cı (with the linking vowel –ı– for harmony), you get bulaşıcı: “able to infect or spread.”
Hastalık is in the nominative case, which is the default form for subjects. Turkish does not use articles (“a,” “the”) in the same way English does, and subjects in the nominative simply appear without any suffix when they’re indefinite or generic.