RENDERS INVALID is a term used to describe the process of making something legally or officially invalid. NULLS, NEGATES, and ANNULS are all words that can be used to describe this process. NULLS is a five-letter word meaning to make something legally void or invalid. NEGATES is a seven-letter word meaning to deny the validity or effect of something. ANNULS is a six-letter word meaning to declare something legally invalid. All three words can be used to describe the process of RENDERS INVALID.