perilous

/pɛɹ.l̩.əs/adjective

Involving serious danger or risk.

Example sentences

“The climbers faced a perilous descent in the fading light.”
“Refugees made a perilous journey across the sea in a small boat.”

More literary than 'dangerous'. A journey or a climb is perilous; a household chemical is just dangerous.

Synonyms for perilous

dangerous
hazardous
risky
treacherous
precarious

Antonyms

safe
secure

Find it in: Advanced English words.

Related words

perfunctoryDone quickly and without real care or interest, merely because it has to be done.peremptoryExpecting to be obeyed at once, in a rude way that allows no questions or refusal.petulantRude, irritable, and childishly bad-tempered.pariahSomeone whom society or their community refuses to accept; an outcast.piqueA brief feeling of irritation or resentment, especially when your pride has been hurt.paltrySo small or worthless as to be almost meaningless.