adventitious
Not inherently belonging
Adventitious describes something that appears or develops in an unexpected place or manner, often by chance rather than design.
In biology, adventitious roots or buds grow from unusual locations on a plant—a stem cutting that sprouts roots, for instance.
More broadly, the word means incidental or arising from external factors rather than inherent causes: The similarity between the two languages is adventitious, not evidence of a common ancestor.
From another nation
- externalLocated on outside
- exogenousOriginating outside the system
- extraneousNot pertinent or essential
- nonessentialNot required or needed
superfluous · peripheral · incidental · supplementary · accessory · secondary · additional · acquired
Happening by lucky chance
- unintentionalNot done on purpose
- inadvertentDone without intention
- unplannedNot arranged beforehand
- serendipitousFortunately coincidental
coincidental · incidental · unforeseen · unpremeditated · unlooked-for · unwitting · chance · unexpected
foreign
From another nation
- externalLocated on outside
- exogenousOriginating outside the system
- extraneousNot pertinent or essential
nonessential · superfluous · peripheral · incidental · supplementary · accessory · secondary · additional · acquired · imported
fortuitous
Happening by lucky chance
- unintentionalNot done on purpose
- inadvertentDone without intention
- unplannedNot arranged beforehand
serendipitous · coincidental · incidental · unforeseen · unpremeditated · unlooked-for · unwitting · chance · unexpected · spontaneous
roots
Underground nutrient absorbers
growth · propagation · grafting · callus · meristem · plantlets · rhizomes · stolons · tubers · bulbs
- root typestaproot, aerial roots, fibrous, prop roots, buttress roots
adventitiousinherent
Existing as essential part
intrinsic · essential · innate · inborn · congenital
adventitiouspremeditated
Planned before acting
deliberate · intentional · planned · designed · calculated