Liable to objection or debate; used of something one might take exception to:
— A thoroughly unpleasant highly exceptionable piece of writing.

synoniem: objectionable.

Roget 947: guilty, to blame, culpable, peccable^†, in fault, at fault, censurable, reprehensible, blameworthy, uncommendable, illaudable^†; weighed in the balance and found wanting; exceptionable.   

Roget 932: disapproving etc. v.; scandalized.    disparaging, condemnatory, damnatory^†, denunciatory, reproachful, abusive, objurgatory^†, clamorous, vituperative; defamatory etc. 934.    satirical, sarcastic, sardonic, cynical, dry, sharp, cutting, biting, severe, withering, trenchant, hard upon; censorious, critical, captious, carping, hypercritical; fastidious etc. 868; sparing of praise, grudging praise.    disapproved, chid etc. v.; in bad odor, blown upon, unapproved; unblest^†; at a discount, exploded; weighed in the balance and found wanting.    blameworthy, reprehensible etc. (guilt) 947; to blame, worthy of blame; answerable, uncommendable, exceptionable, not to be thought of; bad etc. 649; vicious etc. 945.    unlamented, unbewailed^†, unpitied^†.    ... meer laten zien