iːz iz ˌɹilækˈseɪʃən sɪmˈplɪsɪti the quality of being easy in behavior or style there was an easiness between them a natural easiness of manner freedom from difficulty or hardship or effort he rose through the ranks with apparent ease they put it into containers for ease of transportation the very easiness of the deed held her back a feeling of refreshing tranquility and an absence of tension or worry the easiness we feel when sleeping