opportunistic

//ˌɒp.əˈtjuː.nɪ.stɪk//
C1Frequency Level 12Neutral
Visual representation of opportunistic

Adjective

opportunisticCanonical form
more opportunisticComparative
most opportunisticSuperlative
1

Taking advantage of opportunities as they arise, often without regard for principles or consequences.

The politician was criticized for his opportunistic behavior during the crisis.

2

(Biology) Describing an organism that exploits available resources or conditions, especially when competition is low.

Opportunistic species quickly colonize disturbed habitats where competition is minimal.

3

(Medicine) Describing an infection or disease that occurs primarily in individuals with weakened immune systems.

Pneumocystis pneumonia is an opportunistic infection that affects patients with compromised immune systems.