YOU SAID:
My uncle's wife is not healthy
INTO JAPANESE
叔父の妻は元気ではない
BACK INTO ENGLISH
My uncle's wife is not well.
INTO JAPANESE
私のおじさんの奥さんは体調が悪い。
BACK INTO ENGLISH
My uncle's wife is ill.
INTO JAPANESE
叔父の妻は病気です。
BACK INTO ENGLISH
My uncle's wife is ill.
That didn't even make that much sense in English.