nullifiest

Verb

nullify (third-person singular simple present nullifies, present participle nullifying, simple past and past participle nullified)

1. (transitive) To make legally invalid.
   • Near-synonyms: cancel, void, quash

   Synonyms:

   cancel, void, quash, annul

2. To prevent from happening.
3. To make of no use or value; to cancel out.
   • The persuasion that a thing is impossible, at once nullifies endeavour, and like the Turkish "it is fate," torporises activity and exertion.1843, The Metropolitan - Volume 36, page 52