1. adjective person2. adjective unscheduled3. adjective unpremeditated4. adjective BIOCHEM, MED infection etc5. adjective BIOL, ZOOL feeder etc1 adjective usually pejorative personthey're being opportunistictá siad ag breith ar an bhfaill, tá siad ag teacht i dtír ar chúrsaíopportunistic entrepreneursfiontraithe a thapaíonn a ndeis2 adjective unscheduledgan choinne c m uthey had opportunistic meetings with teachersbhí cruinnithe gan choinne acu le múinteoirí3 adjective unpremeditatedit was an opportunistic theftgadaíocht nach raibh réamhbheartaithe a bhí ann, gadaíocht ar ala na huaire a bhí annan opportunistic fraudstercaimiléir faille4 adjective BIOCHEM, MED infection etcfaille gs as adj c m uopportunistic infectionionfhabhtú faille5 adjective BIOL, ZOOL feeder etcfaille gs as adj c m uan opportunistic huntersealgaire faille