Learning without thought is labor lost; thought without learning is perilous.
Source: tatoeba (2923890)
Perilous
//ˈpɛɹ.ɪ.ləs//
Synonyms for "perilous" (65 found)
Ranked by relevance and common usage.
Closest matches (13)
Strong matches (20)
Related words (32)
Related word relations
OpenGloss and ConceptNet supply richer edges like generalizations, collocations, and derivations.
Synonyms
1 entriesRelated terms
2 entriesderived
3 entriesrelated to
2 entriessimilar
2 entriesTranslations
42 translations across 29 languages.
Bikol Central
1 entries- delikado adj (dangerous, full of peril)
Bulgarian
2 entries- опасен adj (dangerous, full of peril)
- рискован adj (dangerous, full of peril)
Catalan
1 entries- perillós adj (dangerous, full of peril)
Cherokee
1 entries- ᎦᎾᏰᎩ adj (dangerous, full of peril)
Danish
1 entries- farlig adj (dangerous, full of peril)
Dutch
1 entries- gevaarlijk adj (dangerous, full of peril)
Finnish
2 entries- hengenvaarallinen adj (dangerous, full of peril)
- vaarallinen adj (dangerous, full of peril)
French
1 entries- périlleux adj (dangerous, full of peril)
German
2 entries- gefahrvoll adj (dangerous, full of peril)
- gefährlich adj (dangerous, full of peril)
Greek
1 entries- επικίνδυνος adj (dangerous, full of peril)
Hungarian
3 entries- kockázatos adj (dangerous, full of peril)
- veszedelmes adj (dangerous, full of peril)
- veszélyes adj (dangerous, full of peril)
Icelandic
2 entries- háskalegur adj (dangerous, full of peril)
- hættulegur adj (dangerous, full of peril)
Italian
2 entries- pericoloso adj (dangerous, full of peril)
- rischioso adj (dangerous, full of peril)
Japanese
1 entries- 危ない adj (dangerous, full of peril)
Latin
1 entries- perīculōsus adj (dangerous, full of peril)
Macedonian
2 entries- о́пасен adj (dangerous, full of peril)
- ри́зичен adj (dangerous, full of peril)
Norwegian Bokmål
2 entries- farefull adj (dangerous, full of peril)
- farlig adj (dangerous, full of peril)
Norwegian Nynorsk
1 entries- farefull adj (dangerous, full of peril)
Occitan
1 entries- perilhós adj (dangerous, full of peril)
Plautdietsch
1 entries- roakboa adj (dangerous, full of peril)
Polish
1 entries- niebezpieczny adj (dangerous, full of peril)
Portuguese
3 entries- arriscado adj (dangerous, full of peril)
- periculoso adj (dangerous, full of peril)
- perigoso adj (dangerous, full of peril)
Russian
2 entries- опа́сный adj (dangerous, full of peril)
- риско́ванный adj (dangerous, full of peril)
Spanish
1 entries- peligroso adj (dangerous, full of peril)
Swedish
1 entries- farlig adj (dangerous, full of peril)
Tagalog
1 entries- delikado adj (dangerous, full of peril)
Turkish
1 entries- tehlikeli adj (dangerous, full of peril)
Welsh
2 entries- enbyd adj (dangerous, full of peril)
- peryglus adj (dangerous, full of peril)
Yiddish
1 entries- סכּנהדיק adj (dangerous, full of peril)
Sample sentences
12 total sentences available.
A coward is someone who, in a perilous emergency, thinks with his legs.
Source: tatoeba (3147205)
Whose broad stripes and bright stars, thro’ the perilous fight, o’er the ramparts we watched were so gallantly streaming.
Source: tatoeba (5989151)
Life is short, and Art long; the crisis fleeting; experience perilous, and decision difficult.
Source: tatoeba (6042772)
Showing 4 of 12 available sentences.
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.