-ton / -tön adjectives indicating The shortage of a thing onni 'joy' → onneton 'unhappy' koti 'dwelling' → koditon 'homeless' -va / -vä adjectives from verbs taitaa 'to have the ability' → taitava 'skillful' johtaa 'to lead' → johtava 'primary' Here are several of the greater popular this kind https://suomalainen.vuodatus.net/