Opportunistic allocation refers to the approach of allocating resources or opportunities based on the ability to benefit from them in an expedient manner, rather than a fair or equitable way. Synonyms for opportunistic allocation may include biased allocation, favoritism, cronyism, nepotism, preferential treatment, or patronage. These terms all imply a lack of fairness in the allocation process, favoring certain individuals or groups over others. Alternatively, antonyms for opportunistic allocation may include equal distribution, merit-based allocation, impartial allocation, or fair allocation. These terms suggest a more equitable and just distribution of resources or opportunities.