hazardous

poisonous

Capable of causing death

• venomousProducing injected toxins
• carcinogenicCauses cancer
• noxiousHarmful, especially when inhaled

radioactive · contaminated · chemical · biohazard · asbestos · lead · mercury · pollutant · mutagenic · corrosive

perilous

Fraught with danger

• lethalCausing or capable of death
• deadlyAble to cause expiration
• fatalCausing death or ruin

treacherous · menacing · destructive · catastrophic · life-threatening · harmful · injurious · damaging · detrimental · unsafe

slippery

Lacking friction, hard-to-grasp

• icyFrozen or unfriendly
• treacherousDisloyal and dangerous
• fogLow-lying cloud cover

visibility · terrain · weather · road · wet · steep · unstable · narrow · winding · construction

gamble

Stake on uncertain outcome

• speculativeBased on conjecture
• uncertainNot firmly known
• diceyUncertain and hazardous

chancy · iffy · unpredictable · high-stakes · volatile · unstable · touch-and-go · venture · liability · exposure

menacing

Conveying threat or danger

• ominousSuggesting something bad approaches
• forebodingFearful anticipation of harm
• sinisterThreateningly suggestive of harm

hostile · alarming · frightening · intimidating · looming · impending · imminent · warning · danger · caution

workplace

Employment location

• industrialOf factories and production
• machineryCollective mechanical equipment
• equipmentTools for a task

mining · construction · logging · fishing · electrical · heights · OSHA · safety · protective · gear

• postalmail, mail delivery, stamp, stamps, mail service
• Danger Levelsdanger, high risk, high-risk, low risk, critical
• path conditionsmuddy, rocky, icy, slippery, wet
• safety labelssafe, unsafe, dangerous, toxic, flammable
• Trail Conditionswet, dry, muddy, icy, slippery
• obstacle wordsimpassable, blocking, steep, slippery, treacherous