not prudent or wise; "very imprudent of her mother to encourage her in such silly romantic ideas"; "would be imprudent for a noneconomist to talk about the details of economic policy"- A.M.Schlesinger
so exceedingly large or extensive as to suggest a giant or mammoth; "a gigantic redwood"; "gigantic disappointment"; "a mammoth ship"; "a mammoth multinational corporation"
lacking regard for the rights or feelings of others; "shockingly inconsiderate behavior"
without proper consideration or reflection; "slovenly inconsiderate reasoning"; "unconsidered words"; "prejudice is the holding of unconsidered opinions"
indulging in or influenced by fancy; "a fanciful mind"; "all the notional vagaries of childhood"
having a curiously intricate quality; "a fanciful pattern with intertwined vines and flowers"
not based on fact; dubious; "the falsehood about some fanciful secret treaties"- F.D.Roosevelt; "a small child's imaginary friends"; "her imagined fame"; "to create a notional world for oneself"
given to excess in consumption of especially food or drink; "over-fed women and their gluttonous husbands"; "a gluttonous debauch"; "a gluttonous appetite for food and praise and pleasure"
not appropriate or proper (or even legal) in the circumstances; "undue influence"; "I didn't want to show undue excitement"; "accused of using undue force"
lacking justification or authorization; "unreasonable searches and seizures"; "desire for undue private profit"; "unwarranted limitations of personal freedom"
presumptuously arrogant; "had a witty but overweening manner"; "no idea how overweening he would be"- S.V.Benet; "getting a little uppity and needed to be slapped down"- NY Times
based on or subject to individual discretion or preference or sometimes impulse or caprice; "an arbitrary decision"; "the arbitrary rule of a dictator"; "an arbitrary penalty"; "of arbitrary size and shape"; "an arbitrary choice"; "arbitrary division of the group into halves"