Anagrams of: INVALIDATE

• declare or make legally valid

• prove valid; show or confirm the validity of something

• give evidence for

• make valid or confirm the validity of

• having a valence of two or having two valences

• a colloquial expression for invitation

• increase the likelihood of

• invite someone to one's house

• give rise to a desire by being attractive or inviting

• ask someone in a friendly way to do something

• have as a guest

• ask to enter

• request the participation or presence of

• express willingness to have in one's home or environs

• having no cogency or legal force

• someone who is incapacitated by a chronic illness or injury

• no longer valid

• force to retire, remove from active duty, as of firemen

• injure permanently

• a person whose behavior deviates from what is acceptable especially in sexual behavior

• markedly different from an accepted norm

• a means of serving

• take advantage of

• be of use to, be useful to

• take or use

• operate an airplane