Uncertain as to outcome; risky; hazardous.
Involving risk; hazardous; dangerous
Capable of being relied on; dependable:
That cannot be doubted, questioned, or disputed; absolutely true; certain
The definition of reliable is dependable or capable of being trusted.
The definition of definite is something that has limits, is clear in meaning, absolutely true and positive.
Being without defect or blemish:
Having two or more possible meanings
Subject to doubt or question; uncertain.
Not conclusive or final; not leading to a definite result
Free from doubt or confusion; certain:
Subject to caprices; tending to change abruptly and without apparent reason; erratic; flighty
Uncertain or doubtful:
Not having come to a decision; irresolute
Precarious; unstable; unreliable.
Showing bad taste.
The definition of dubious is something that is unlikely to be true.
Not decisive; not conclusive or final
Not fixed or known in advance:
Not settled; yet to be determined; uncertain
Not definitely as specified; uncertain
Constantly changing; uncertain; fitful
Find another word for iffy. In this page you can discover 40 synonyms, antonyms, idiomatic expressions, and related words for iffy, like: doubtful, uncertain, chancy, risky, certain, sure, reliable, definite, perfect, ambiguous and clouded.