/?rek.?n/UKtofailtothinkabout something when you are makingplansandthereforenot bepreparedtodealwith it:We'dexpecteda two-hourdrivebut hadreckonedwithout therain.SMART Vocabulary: related words and phrasesNot expected or planned
abruptly
abruptness
ad hoc
ad hocism
ad hockery
extemporize
hoof
inconceivably
innocent
innocently
instinctive
instinctively
spirit
spontaneity
spontaneous
spontaneously
steepness
unannounced
unwitting
unwittingly
See more results ?(Definition ofreckon without somethingfrom theCambridge Advanced Learner's Dictionary & Thesaurus? Cambridge University Press)#https://dictionary.cambridge.org//dictionary/english/reckon-without##