3 syllables: cor, ros, ive. Stress on ros.
/kəˈroʊsɪv/
Say it backCorrosive is an adjective describing something having the quality of corroding or eating away by chemical action. It can also describe a mindset or tone that is harshly critical. In everyday use, it often refers to substances that damage or destroy materials, or to speech or attitudes that are caustic. The word implies gradual, persistent, and damaging influence.
"The researchers handled the corrosive acid with special gloves and goggles."
"Her corrosive remarks left the room in near silence after the meeting."
"The policy commentaries took a corrosive tone, undermining constructive discussion."
Usual pronunciation is /kəˈroʊ.sɪv/ with the primary stress on the second syllable. Start with a schwa in the first syllable, then a long ‘o’ as in ‘go’, followed by a light ‘siv’. For UK English it’s /kəˈrəʊ.sɪv/ with a similar stress pattern. In Australian English you’ll also hear /kəˈroʊ.sɪv/ or /kəˈrəʊ.sɪv/. Tip: keep the second syllable tense and clear, avoid stretching the vowel too long. Audio reference: aim for a crisp, non-rhotic UK variant if told; otherwise US rhotic is common in many contexts.
Two frequent errors are misplacing stress or diluting the second syllable. People sometimes say co-RROS-ive or co-RO-sov with unclear vowel length. Correct it by emphasizing the second syllable: kə-ROH-siv, and ensure the 'ro' is a clear, long vowel, not a quick schwa. Another pitfall is pronouncing the final 'sive' as a hard 'sive' rather than a light 'siv' with a soft ‘v’ at the end. Practice with a model: kə-ROH-siv.
In US English, /kəˈroʊ.sɪv/ with rhotic r and a long 'o'. UK English tends to /kəˈrəʊ.sɪv/ with non-rhotic pronunciation and a broader diphthong in the second syllable. Australian English is similar to US in rhoticity but may show a slightly flatter vowel in the first syllable and a clipboard-like vowel shift on the long 'o' depending on regional variation. IPA notes: US /kəˈroʊ.sɪv/, UK /kəˈrəʊ.sɪv/, AU /kəˈroʊ.sɪv/.
Two main challenges: the second syllable’s strong, stressed vowel and the consonant cluster in '-sive'. The 'ro' vowel is a true diphthong in US /oʊ/ or UK /əʊ/, which can trip learners expecting a simple 'ro' as in 'rod'. The final '-sive' requires a clear 's' followed by a soft 'v'—avoid turning it into /zɪv/ or /sɪv/ without the initial 's'. Practice with deliberate mouth positions and slow repetition.
The word’s combination of a stressed second syllable and a long vowel in the 'ro' portion can catch many learners off guard. Focus on the strong /roʊ/ or /rəʊ/ sound in the second syllable and ensure the following /sɪv/ is crisp, not rushed. The tongue should be mid-high, lips neutral for the schwa and rounded for the /oʊ/ sound, with a controlled vocalic transition from /roʊ/ to /sɪv/.
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Corrosive comes from the Latin corrodere, meaning to gnaw away, from com- (together) + rodere (to gnaw). The root rod- is tied to gnawing and eating away. The word entered English via late Middle English, adopting the sense of causing chemical dissolution or destruction. Its usage broadened through the scientific vocabulary of chemistry and material science, where corrosive substances actively wear away metals, stone, and organic tissue. By the 19th century, corrosive described both physical agents (acids, alkalis) and metaphoric uses (corrosive criticism or environments). The noun corrosion parallels the verb corrode, sharing the same Latin lineage. First known use in print aligns with the expansion of chemical terminology in technical texts, with examples in metallurgy and chemistry literature illustrating materials science contexts. Over time, corrosive has retained its precise, often technical nuance, while also entering common parlance to describe harmful social or conversational climates that erode trust or morale.
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💡 These words have similar meanings to "corrosive" and can often be used interchangeably.
🔄 These words have opposite meanings to "corrosive" and show contrast in usage.
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Words that rhyme with "corrosive"
-ive sounds
Practice with these rhyming pairs to improve your pronunciation consistency:
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