IFFY Antonyms

• precise; explicit and clearly defined

• known for certain

• worthy of reliance or trust

• worthy of being depended on

• conforming to fact and therefore worthy of belief

• free from fear or doubt; easy in mind

• free from danger or risk

• not likely to fail or give way

• immune to attack; incapable of being tampered with

• financially safe

• get by special effort

• cause to be firmly attached

• assure payment of

• make certain of

• fill or close tightly with or as if with a plug

• furnish with battens

• having or feeling no doubt or uncertainty; confident and assured

• certain to occur; destined or inevitable

• definitely or positively (`sure' is sometimes used informally for `surely')

• exercising or taking care great enough to bring assurance

• physically secure or dependable

• reliable in operation or effect

• (of persons) worthy of trust or confidence

• infallible or unfailing

• certain not to fail

• impossible to doubt or dispute

• worthy of trust or belief

• taking responsibility for one's conduct and obligations

• having or exhibiting a single clearly defined meaning

• admitting of no doubt or misunderstanding; having only one meaning or interpretation and leading to only one conclusion

• not possible to deny