opportunistic
adjective/ˌɑpərˌtjuːnˈɪstɪk/
Frequency rank: #12,160 most common English word
Meaning
Taking advantage of opportunities as they arise, often with little regard for principles or others.

Example sentence
The fox was opportunistic and grabbed the unguarded chicken the moment the farmer turned away.
Synonyms & related words
- calculating
- exploitative
- self-serving
- shrewd
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