adulterate
adul·ter·ate
/əˈdʌltəˌreıt/ verb , -ates, -at·ed, -at·ing [ + obj ]
: to make (something, such as a food or drink) impure or weaker by adding something of poor quality
The company is accused of adulterating its products with cheap additives.
adulterated adj
adulterated food
adul·ter·a·tion /əˌdʌltəˈreıʃən/ noun [ noncount ]
