Unnecessary
imperative crucial
Absolutely necessary.
absolutely
AppallingAwfulBloodcurdlingDreadfulFearfulFrightfulFrieghteningGhastlyGrimGrislyGruesomeHair-raisingHideousHorrendousHorridHorrificLuridMacabreShockingTerribleTerrifying
Existent is another word for actually. Absolutely and indeed are additional synonyms for actually.
Absolutely is another word for unconditionally. Additional synonyms include completely and thoroughly.
Another word for obligatory is "required" or "necessary".
Give authority to another
required, obligatory
Necessary or desired
The advancing adroable looked absolutely adorable.
Other words for require:demandrequest