adventitious

Alien is a related term of adventitious.

As a verb alien

is .

As an adjective adventitious is

from an external source; not innate or inherent, foreign.

As an adjective adventitious is

from an external source; not innate or inherent, foreign.

Adventitious is a synonym of serendipitous.

As adjectives the difference between serendipitous and adventitious

is that serendipitous is by serendipity; by unexpected good fortune while adventitious is from an external source; not innate or inherent, foreign.

Inadvertant is likely misspelled.

Inadvertant has no English definition.

As an adjective adventitious

is from an external source; not innate or inherent, foreign.

Exotic is a related term of adventitious.

As adjectives the difference between exotic and adventitious

is that exotic is exotic while adventitious is from an external source; not innate or inherent, foreign.

As adjectives the difference between extraneous and adventitious

is that extraneous is not belonging to, or dependent upon, a thing; without or beyond a thing; foreign while adventitious is from an external source; not innate or inherent, foreign.

As adjectives the difference between haphazard and adventitious

is that haphazard is random; chaotic; incomplete; not thorough, constant, or consistent while adventitious is from an external source; not innate or inherent, foreign.

As a noun taxonomy

is the science or the technique used to make a classification.

As an adjective adventitious is

from an external source; not innate or inherent, foreign.

In biology|lang=en terms the difference between adventitious and anthropochory

is that adventitious is (biology) developing in an unusual place or from an unusual source while anthropochory is (biology) the (typically inadvertent and sporadic) dispersal by humans, of seeds, spores, or other reproductive botanical material, or of reproductively capable animals, into a region where they do not natively occur, resulting in adventitious anthropochorous establishment of an alien population if successful.

As an adjective adventitious

is from an external source; not innate or inherent, foreign.

As a noun anthropochory is

(biology) the (typically inadvertent) dispersal of seeds, spores, or other reproductive botanical material, or of reproductively capable animals, by humans as a routine means of reproductive dispersal of that species.

As an adjective adventitious

is from an external source; not innate or inherent, foreign.

As a noun complication is

the act or process of complicating; the state of being complicated; intricate or confused relation of parts; entanglement; complexity.