1. invalidate

verb. (ˌɪnˈvælɪˌdeɪt) Declare invalid.
Antonyms
validate begin promote repair enliven continue conform to
Synonyms
cancel avoid stet break nullify
Etymology
invalidate (English)
in- (English)
in (Latin)
in- (Latin)
in- (Middle English (1100-1500))
in- (Old English (ca. 450-1100))
in (Old English (ca. 450-1100))
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2. invalidate

verb. (ˌɪnˈvælɪˌdeɪt) Show to be invalid.
Antonyms
affirm validate function stay
Synonyms
negate contradict
Etymology
invalidate (English)
in- (English)
in (Latin)
in- (Latin)
in- (Middle English (1100-1500))
in- (Old English (ca. 450-1100))
in (Old English (ca. 450-1100))

3. invalidate

verb. (ˌɪnˈvælɪˌdeɪt) Take away the legal force of or render ineffective.
Antonyms
validate issue unbalance confront consume keep quiet
Synonyms
change void vitiate modify
Etymology
invalidate (English)
in- (English)
in (Latin)
in- (Latin)
in- (Middle English (1100-1500))
in- (Old English (ca. 450-1100))
in (Old English (ca. 450-1100))

4. invalidate

verb. (ˌɪnˈvælɪˌdeɪt) Make invalid for use.
Antonyms
unify respect keep explode
Synonyms
score mark
Etymology
invalidate (English)
in- (English)
in (Latin)
in- (Latin)
in- (Middle English (1100-1500))
in- (Old English (ca. 450-1100))
in (Old English (ca. 450-1100))
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