Words to Describe warnings

How warnings often is described ("________ warnings")

• such
• useful
• terrible
• auditory
• solemn
• faithful
• vague
• apocalyptic
• necessary
• adequate
• salutary
• similar
• explicit
• biblical
• official
• many
• earnest
• clear
• ominous
• several
• specific
• cautionary
• strong
• raid
• formal
• soviet
• appropriate
• grim
• sufficient
• emphatic
• continual
• timely
• serious
• awful
• grave
• mysterious
• usual
• constant
• further
• anonymous
• repeated
• unheeded
• fearful
• visual
• wise
• oral
• stern
• frequent
• prophetic
• occasional
• navigational
• urgent
• ample
• dire
• numerous
• divine
• parental
• utter
• prior
• friendly
• disinterested
• special
• early
• severe
• false
• verbal
• sharp
• preliminary
• earlier
• previous