opportunistic

As an adjective opportunistic

is taking advantage of situations that arise.

As an interjection new is

mew, meow, miaow.

As adjectives the difference between advantageous and opportunistic

is that advantageous is being of advantage, beneficial while opportunistic is taking advantage of situations that arise.

As adjectives the difference between opportunistic and false

is that opportunistic is taking advantage of situations that arise while false is (label) one of two states of a boolean variable; logic.

As adjectives the difference between optimistic and opportunistic

is that optimistic is expecting the best in all possible ways while opportunistic is taking advantage of situations that arise.

As an adjective opportunistic

is taking advantage of situations that arise.

As a noun utilitarianism is

a system of ethics based on the premise that something's value may be measured by its usefulness.

As adjectives the difference between opportunistic and serendipitous

is that opportunistic is taking advantage of situations that arise while serendipitous is by serendipity; by unexpected good fortune.

As adjectives the difference between random and opportunistic

is that random is having unpredictable outcomes and, in the ideal case, all outcomes equally probable; resulting from such selection; lacking statistical correlation while opportunistic is taking advantage of situations that arise.

As a noun random

is a roving motion; course without definite direction; lack of rule or method; chance.

As adjectives the difference between opportunistic and utilitarian

is that opportunistic is taking advantage of situations that arise while utilitarian is of or relating to utility.

As a noun utilitarian is

someone who practices or advocates utilitarianism.

As adjectives the difference between speculative and opportunistic

is that speculative is while opportunistic is taking advantage of situations that arise.