Hazardous

/ˈhæ.zɚ.dɪs/

Synonyms for "hazardous" (161 found)

Ranked by relevance and common usage.

Closest matches (33)

Adjective(16 words)
riskyadverse weatherbadchallengingchancierchanciestchemicalchemical disciplinechemical science fieldcompromising stancedangerousdangerous beastdangerous creaturedangerous situationdangerous tamperingdangerous wild animal
Noun(8 words)
Adverb(1 words)
chemically reactive material

Strong matches (48)

Adjective(13 words)
dicierdiciestflammablegnarliesthairierharmful chemicalharmful effectharmful specieshazard-relatedhazardous acidhazardous experimentiffylawless frontier
Noun(15 words)
electrical wireelectrocutingendangeringenvironmental chemical effectfreshwater incompatiblegasoline spillguessing without evidenceheat unstablehigh voltage stored-energy capacitorill advised actionimperillinginclement weatherkamikazenot food-safeoverexposing
Determiner(2 words)
more chemical sample kitmost toxic alteration

Related words (80)

Adjective(32 words)
perilouspolluting airprecariousradioactiveriskierrisky behaviorrisky methodrisky riverrisqueserious issuesnakieststormiersubprimethin icetoxictoxic chemicaltoxic materialtoxic rumortoxic solventtoxic substance
Show 12 more words
treacherousunhealthiestunhealthy conditionunregulated drugsunsafeunsafe actionunsafe environmentunsafe housingunsafe manipulationunsafestvolatilewild
Noun(10 words)
riskingroughneckingstrong cleaning solventtemptingthermally volatiletoxic alteration zonetoxic chemical exposuretoxic chemical substancetrippingviolent push
Verb(1 words)

Choosing the right synonym

  • Closest matches in this entry: risky, acute, adventurous, adverse weather, aleatory.
  • Sentence evidence is available for hazardous, so synonym choice can be checked against real usage rather than a flat word list.
  • Ranking signals come from wordnet, opengloss, derived_reverse, moby, and related lexical sources.

Synonym selection checklist

  • Match the part of speech before comparing meanings.
  • Check whether the synonym changes intensity, formality, or emotional tone.
  • Read the replacement inside the full sentence, not just beside "hazardous".
  • Prefer the clearest word over the most unusual word when writing for speed or comprehension.

When not to replace "hazardous"

Keep "hazardous" when the sentence already sounds natural, when a synonym would add unintended emphasis, or when readers need the most familiar wording. A synonym should clarify or sharpen the message, not simply make the sentence look more varied.

If two options seem close, choose the one that best matches the audience and purpose of the sentence.

Replacement workflow

1. Preserve meaning

Choose a synonym only if it keeps the core idea of "hazardous" intact in the sentence you are editing.

2. Tune tone

Check whether the replacement sounds more formal, casual, emotional, technical, or forceful than the original word.

3. Re-read context

Read the full sentence after the swap. Keep the synonym only when the sentence becomes clearer or more precise.

Review note: Synonym lists are ranked with lexical data and reviewed for practical writing value. Use the comparison notes, sentence evidence, and source labels together; a high-ranking synonym can still be wrong when the audience, register, or grammar changes.

Final fit check

After choosing a replacement for "hazardous", read the sentence once for meaning and once for rhythm. The best synonym should feel natural in the full sentence, not only accurate in a word list.

If the synonym makes the sentence slower, vaguer, or more dramatic than intended, keep "hazardous" or choose a simpler alternative from the closest-match group.

Related word relations

OpenGloss and ConceptNet supply richer edges like generalizations, collocations, and derivations.

6 relation types

More general

5 entries
dangerdangerous materialharmhazardrisk

More specific

9 entries
corrosivedangerous choiceexplosiveflammablehazardous planradioactiverisky behaviortoxicunsafe plan

Collocations

6 entries
hazardous chemicalshazardous driving conditionshazardous materialshazardous situationhazardous wastehazardous weather

Inflections

2 entries
more hazardousmost hazardous

Derivations

3 entries

similar

2 entries

Sample sentences

11 total sentences available.

Tatoeba + Wiktionary

Too much drinking may be hazardous to your health.

Source: tatoeba (23614)

This plastic garbage bag is free of hazardous chemicals.

Source: tatoeba (60605)

Using English to communicate between Japanese and Chinese is not only ridiculous and ineffective but can prove very hazardous.

Source: tatoeba (1273207)

Legislation clearly distinguishes between dangerous goods and hazardous materials.

Source: tatoeba (1566195)

Showing 4 of 11 available sentences.

Common questions

What are the closest synonyms for "hazardous"?

Closest matches include risky, acute, adventurous, adverse weather, aleatory.

How should I check whether a synonym fits "hazardous"?

Compare the replacement against real sentence context. This entry includes sample sentences so you can check tone, grammar, and meaning before swapping words.

More for "hazardous"