coincidental

adj.

巧合的，同时发生的；

1. I suppose your presence here today is not entirely coincidental.
   我认为你今天来这里不完全是碰巧。
2. The similarity between these two essay is too great to be coincidental.
   这两篇文章雷同的地方很多，并非巧合所致。

Coincidental aneurysms with tumours of pituitary origin.
Avoiding coincidental correctness in boundary value analysis
Ribosomes and marrow failure: coincidental association or molecular paradigm?
Chronic pancreatitis and inflammatory bowel disease: true or coincidental association?
Personal networks and firm competitive strategy—A strategic or coincidental match?
Extraintestinal virulence is a coincidental by-product of commensalism in B2 phylogenetic group Escherichia coli strains.
Familial uveal melanoma, III. Is the occurrence of familial uveal melanoma coincidental?
Nuclear Inclusions in Glutamine Repeat Disorders : Are They Pernicious, Coincidental, or Beneficial?
Periodontitis–systemic disease associations in the presence of smoking – causal or coincidental?
Autologous bone marrow transplantation for non-Hodgkin's lymphoma resulting in long-term remission of coincidental Crohn's disease.