'iffy' definitions:

Definition of 'iffy'

adjective

Subject to accident or chance or change; "a chancy appeal at best"; "getting that job was definitely fluky"; "a fluky wind"; "an iffy proposition" [syn: chancy, fluky, flukey, iffy]

Synonyms of 'iffy'

From: Moby Thesaurus

accidental,
adventitious,
aleatory,
arguable,
at issue,
capricious,
casual,
causeless,
chance,
chancy,
confutable,
conjectural,
contestable,
contingent,
controversial,
controvertible,
debatable,
deniable,
destinal,
dicey,
disputable,
doubtable,
doubtful,
dubious,
dubitable,
erratic,
fatal,
fatidic,
fluctuant,
fluky,
fortuitous,
in dispute,
in doubt,
in dubio,
in question,
incalculable,
incidental,
indeterminate,
mistakable,
moot,
open to doubt,
open to question,
problematic,
questionable,
refutable,
risky,
speculative,
suppositional,
suspect,
suspicious,
uncaused,
undetermined,
unexpected,
unforeseeable,
unforeseen,
unlooked-for,
unpredictable,
whimsical