名詞 certitude:

1. total certainty or greater certainty than circumstances warrant
   同義詞：cocksureness, overconfidence

cer.ti.tude

n.（名詞）
The state of being certain; complete assurance; confidence.
確定：確信的狀態(tài)；完全的確信；信心
Sureness of occurrence or result; inevitability.
必然：發(fā)生或結局的確定性；必然性
Something that is assured or unfailing:
保證或不出錯的事物：
例句：
.eager to swap the hazards of American freedom for the gray certitudes of Soviet life.(Time)See Synonyms at certainty
.急于以美國式自由的冒險來換取蘇維埃式單調但有保證的生活.(時代)參見 certainty

來源：
Middle English
中古英語
from Late Latin certitôdô
源自 后期拉丁語 certitôdô
from Latin certus [certain] * see certain
源自 拉丁語 certus [確定] *參見 certain