Adjective

(en adjective)

taking advantage of situations that arise

:* The danger now isn't so much from the AIDS virus itself as from opportunistic infections.

said of people who will take advantage of situations to advance their own interests, without regard for principles

:* You can't trust somebody that opportunistic -- she'll stab you in the back the first chance she gets.

Adjective

(er)

Recently made, or created.

* {{quote-magazine, date=2013-07-19, author=(Timothy Garton Ash)

, volume=189, issue=6, page=18, magazine=(The Guardian Weekly) , title= Where Dr Pangloss meets Machiavelli , passage=Hidden behind thickets of acronyms and gorse bushes of detail, a new great game is under way across the globe. Some call it geoeconomics, but it's geopolitics too. The current power play consists of an extraordinary range of countries simultaneously sitting down to negotiate big free trade and investment agreements.}}

Additional; recently discovered.

Current or later, as opposed to former.

Used to distinguish something established more recently, named after something or some place previously existing.

In original condition; pristine; not previously worn or used.

Refreshed, reinvigorated, reformed.

Young.

Of recent origin; having taken place recently.

Strange, unfamiliar or not previously known.

* {{quote-magazine, date=2013-07-06, volume=408, issue=8843, page=68, magazine=(The Economist)

, title= The rise of smart beta , passage=Investors face a quandary. Cash offers a return of virtually zero in many developed countries; government-bond yields may have risen in recent weeks but they are still unattractive. Equities have suffered two big bear markets since 2000 and are wobbling again. It is hardly surprising that pension funds, insurers and endowments are searching for new sources of return.}}

Recently arrived or appeared.

*

, title= Mr. Pratt's Patients, chapter=1 , passage='Twas early June, the new grass was flourishing everywheres, the posies in the yard—peonies and such—in full bloom, the sun was shining, and the water of the bay was blue, with light green streaks where the shoal showed.}}

Inexperienced or unaccustomed at some task.

(of a period of time) Next; about to begin or recently begun.