dual
— Adjective
– English
～ a grammatical number category referring to two items or units as opposed to one item (singular) or more than two items (plural); "ancient Greek had the dual form but it has merged with the plural form in modern Greek"
dualistic
— Adjective
– English
～ of or relating to the philosophical doctrine of dualism; "a Manichaean conflict between good and evil"
dubious
— Adjective
– English
～ open to doubt or suspicion; "the candidate's doubtful past"; "he has a dubious record indeed"; "what one found uncertain the other found dubious or downright false"; "it was more than dubitable whether the friend was as influential as she thought"- Karen Horney
dubious
— Adjective
– English
～ fraught with uncertainty or doubt; "they were doubtful that the cord would hold"; "it was doubtful whether she would be admitted"; "dubious about agreeing to go"
dubious
— Adjective
– English
～ not convinced; "they admitted the force of my argument but remained dubious"
dubitable
— Adjective
– English
～ open to doubt or suspicion; "the candidate's doubtful past"; "he has a dubious record indeed"; "what one found uncertain the other found dubious or downright false"; "it was more than dubitable whether the friend was as influential as she thought"- Karen Horney
ducal
— Adjective
– English
～ of or belonging to or suitable for a duke; "ducal palace"
duck-billed
— Adjective
– English
～ having a beak resembling that of a duck; "a duck-billed dinosaur"
duckbill
— Adjective
– English
～ having a beak resembling that of a duck; "a duck-billed dinosaur"
ductile
— Adjective
– English
～ capable of being shaped or bent or drawn out; "ductile copper"; "malleable metals such as gold"; "they soaked the leather to made it pliable"; "pliant molten glass"; "made of highly tensile steel alloy"
ductless
— Adjective
– English
～ not having a duct; "ductless glands"
dud
— Adjective
– English
～ failing to detonate; especially not charged with an active explosive; "he stepped on a dud mine"
due
— Adjective
– English
～ scheduled to arrive; "the train is due in 15 minutes"
due
— Adjective
– English
～ capable of being assigned or credited to; "punctuation errors ascribable to careless proofreading"; "the cancellation of the concert was due to the rain"; "the oversight was not imputable to him"
due
— Adjective
– English
～ owed and payable immediately or on demand; "payment is due"
due
— Adjective
– English
～ suitable to or expected in the circumstances; "all due respect"; "due cause to honor them"; "a long due promotion"; "in due course"; "due esteem"; "exercising due care"
dulcet
— Adjective
– English
～ extremely pleasant in a gentle way; "the most dulcet swimming on the most beautiful and remote beaches"
dulcet
— Adjective
– English
～ pleasing to the ear; "the dulcet tones of the cello"
dull
— Adjective
– English
～ not clear and resonant; sounding as if striking with or against something relatively soft; "the dull thud"; "thudding bullets"