1) Annul 2) Be in contradiction with 3) Belie 4) Cancel 5) Cancel directions to entrance 6) Cancel directions to portal 7) Cancel out 8) Cause to be invalid 9) Contradict 10) Counteract 11) Countermand 12) Deny 13) Deny or annul 14) Deny the truth of 15) Depart 16) Deviate 17) Disprove 18) Diverge 19) Invalidate Found on https://www.crosswordclues.com/clue/negate