adventive

Borrowed from Latin adventīvus, from adveniō (“to come (to)”) +‎ -īvus (verbal-adjective suffix).

• (Received Pronunciation) IPA^(key): /ədˈvɛntɪv/
• (General American) IPA^(key): /ədˈvɛntɪv/
  • (weak vowel merger) IPA^(key): /ədˈvɛntəv/

adventive (comparative more adventive, superlative most adventive)

1. Accidental.
2. Adventitious.
   • 1605, Francis Bacon, “The Second Booke”, in The Twoo Bookes of Francis Bacon. Of the Proficience and Aduancement of Learning, Diuine and Humane, London: [Thomas Purfoot and Thomas Creede] for Henrie Tomes, , →OCLC, folios 44, verso – 45, recto:

     For Hvmane Knovvledge, Which Concernes the mind, it hath two parts, the one that enquireth of The Svbstance, Or Natvre Of The Sovle Or Mind; The other, that enquireth of the Facvlties Or Fvnctions Thereof: vnto the firſt of theſe, the conſiderations of the Originall of the ſoule, whether it be Natiue or aduentiue; and how farre it is exempted from Lawes of Matter; […]

3. (biology) Of a plant that is not native, but was introduced by humans to a place and has since become naturalized.

adventive (plural adventives)

1. A non-native plant that has become naturalized.
   • 1988 April 15, James Krohe Jr., “Where Has All the Flora Gone?”, in Chicago Reader‎:

     Such interlopers are known as exotics, adventives, or aliens, all terms that may be considered synonymous with "nasty.

• IPA^(key): /ad.vɑ̃.tiv/
• Homophone: adventives

adventive

1. feminine singular of adventif