frequently_asked_questions_files/Oxford Thesaurus.pdf

adj. beyond compare, unequalled, matchless, peerless,
inimitable, unparalleled, unrivalled, nonpareil, transcendent,
surpassing, supreme, superior, superlative, unsurpassed,
unsurpassable: Her performance as Lady Macbeth was
incomparable.
incompatible
adj. mismatched, unsuited, discordant, clashing, jarring,
inconsistent, contradictory, conflicting, uncongenial,
irreconcilable, incongruous; antithetic, opposed, opposite,
contrary, antipathetic, antagonistic, hostile: The colours in
the carpet are incompatible with those in the curtains. My
sister and I are totally incompatible and can never meet without
arguing.
incompetence
n. inability, incapacity, inadequacy, insufficiency,
deficiency, ineptitude, inefficiency, uselessness, faultiness:
The students' failure to perform well is often attributable to
the incompetence of their teachers.
incompetent
adj. unqualified, unfit, unable, incapable, unskilled,
unskilful, inept, maladroit, inexpert, awkward, floundering,
clumsy, bungling, gauche, useless, inadequate, insufficient,
ineffective, ineffectual, inefficient: Incompetent managers
need competent secretaries in order to survive.
incomplete
adj. unfinished, undone, imperfect, undeveloped, deficient,
defective, unaccomplished, partial, sketchy, crude, rough,
fragmentary, fragmented, piecemeal: An incomplete manuscript of
a new novel was found in his desk.
incomprehensible
adj. unintelligible, unfathomable, impenetrable, deep,
abstruse, arcane, recondite, indecipherable, undecipherable,
inscrutable, cryptic, obscure, opaque, dark, occult, perplexing,
mysterious, mystifying, enigmatic, puzzling, over (someone's)
head, baffling, unimaginable, inconceivable: They spoke in
Swahili, an incomprehensible language to me.
inconceivable