Adventitious comes from Latin adventīcius, meaning "coming from outside," which, in turn, is from advenīre, "to arrive." The verb is the source of other English words, including advent, …

ADVENTITIOUS definition: associated with something by chance rather than as an integral part; extrinsic. See examples of adventitious used in a sentence.

Their actions are more adventitious and unpredictable; they perceive and act under uncertainty.

Dec 11, 2025 · adventitious (comparative more adventitious, superlative most adventitious) From an external source; not innate or inherent, foreign. synonyms Synonyms: extrinsic, exogenous …

adventitious, adj. meanings, etymology, pronunciation and more in the Oxford English Dictionary

2 senses: 1. added or appearing accidentally or unexpectedly 2. (of a plant or animal part) developing in an abnormal position,.... Click for more definitions.

Arising from an external cause or factor; not inherent: symmetry that was purely adventitious; adventitious circumstances that contributed to the plan's success.

Definition of adventitious adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Adventitious is a word you use to talk about things that "just kind of happen," not because you are trying to do them, but because they just come along. Christopher Columbus's stumbling upon …

Arising from an external cause or factor; not inherent: symmetry that was purely adventitious; adventitious circumstances that contributed to the plan's success.