Thesaurus / in-fallible
FEEDBACKsynonyms for in-fallible
synonyms for in-fallible
- authoritative
- flawless
- foolproof
- unbeatable
- acceptable
- accurate
- agreeable
- apodictic
- certain
- correct
- effective
- effectual
- efficacious
- efficient
- exact
- faultless
- handy
- helpful
- impeccable
- incontrovertible
- inerrable
- inerrant
- omniscient
- perfect
- positive
- reliable
- satisfactory
- satisfying
- sure
- surefire
- true
- trustworthy
- undeceivable
- unfailing
- unimpeachable
- unquestionable
- useful
- genuine
- categorical
- undeniable
- unmitigated
- unequivocal
- definite
- unquestionable
- infallible
- factual
- exact
- positive
- actual
- conclusive
- consummate
- decided
- decisive
- fixed
- precise
- sure
- unambiguous
- imminent
- unavoidable
- certain
- assured
- fated
- ineluctable
- inescapable
- inexorable
- infallible
- undeniable
- ineludible
- inerrant
- inevasible
- returnless
- unescapable
- perfect
- sure
- valid
- proper
- correct
- sound
- real
- faithful
- amen
- complete
- utter
- absolute
- exact
- nice
- admissible
- authentic
- bona fide
- factual
- genuine
- immaculate
- indubitable
- infallible
- just
- on the nose
- out-and-out
- punctilious
- righteous
- rigorous
- satisfactory
- solemn
- strict
- thoroughgoing
- undoubted
- unerring
- veracious
- veritable
- right on
- veridical
- true
- free of error
- inerrant
- on the money
- right as rain
- undistorted
- unmistaken
- watertight
- certain
- assured
- bound
- guaranteed
- indisputable
- ineluctable
- inescapable
- infallible
- irrevocable
- unavoidable
- unerring
- unfailing
- inerrant
- surefire
- certain
- exact
- faultless
- impeccable
- infallible
- invariable
- just
- perfect
- reliable
- sure
- trustworthy
- unfailing
- errorless
- true
- inerrable
- inerrant
- steadfast
- unflagging
- eternal
- inexhaustible
- boundless
- bottomless
- absolute
- assiduous
- ceaseless
- consistent
- constant
- continual
- continuing
- continuous
- dependable
- diligent
- dyed-in-the-wool
- endless
- faithful
- infallible
- invariable
- loyal
- persistent
- reliable
- same
- solid
- staunch
- straight
- sure
- tried-and-true
- trustworthy
- unlimited
- unrelenting
- true
- come-through
- counted on
- delivering
- never-failing
- rock solid
- surefire
- there
- perfect
- definitive
- authoritative
- truthful
- definite
- strict
- valid
- authentic
- factual
- exact
- conclusive
- absolute
- actual
- certain
- faultless
- final
- flawless
- genuine
- infallible
- irrefutable
- official
- right
- straight
- undeniable
- undisputed
- unimpeachable
- unquestionable
- veracious
- errorless
- true
- unrefuted
- real
- sure
- genuine
- undeniable
- clear
- safe
- definite
- positive
- absolute
- authoritative
- conclusive
- demonstrable
- destined
- determined
- evident
- firm
- fixed
- guaranteed
- in the bag
- incontrovertible
- indubitable
- infallible
- irrefutable
- known
- plain
- provable
- reliable
- set
- sound
- supreme
- sure thing
- trustworthy
- unambiguous
- undoubted
- unequivocal
- unerring
- unmistakable
- verifiable
- true
- ascertained
- confirmable
- establishable
- having down pat
- on ice
- predestined
- absolute
- authoritative
- clear
- conclusive
- definite
- demonstrable
- destined
- determined
- evident
- firm
- fixed
- genuine
- guaranteed
- hard
- in the bag
- incontestable
- incontrovertible
- indisputable
- indubitable
- infallible
- irrefutable
- known
- plain
- positive
- provable
- real
- reliable
- safe
- set
- sound
- supreme
- sure
- sure thing
- trustworthy
- unambiguous
- unassailable
- undeniable
- undisputable
- undoubted
- unequivocal
- unerring
- unmistakable
- unquestionable
- verifiable
- ascertained
- confirmable
- establishable
- having down pat
- on ice
- predestined
- true
- absolute
- authoritative
- clear
- conclusive
- definite
- demonstrable
- destined
- determined
- evident
- firm
- fixed
- genuine
- guaranteed
- hard
- in the bag
- inarguable
- incontrovertible
- indisputable
- indubitable
- infallible
- irrefutable
- known
- plain
- positive
- provable
- real
- reliable
- safe
- set
- sound
- supreme
- sure
- sure thing
- trustworthy
- unambiguous
- unassailable
- undeniable
- undisputable
- undoubted
- unequivocal
- unerring
- unmistakable
- unquestionable
- verifiable
- ascertained
- confirmable
- establishable
- having down pat
- on ice
- predestined
- true
- undeniable
- unequivocal
- indisputable
- infallible
- conclusive
- irrefutable
- absolute
- authoritative
- clear
- definite
- demonstrable
- destined
- determined
- evident
- firm
- fixed
- genuine
- guaranteed
- hard
- in the bag
- inarguable
- incontestable
- incontrovertible
- indubitable
- known
- plain
- positive
- provable
- real
- reliable
- safe
- set
- sound
- supreme
- sure
- sure thing
- trustworthy
- unambiguous
- undisputable
- undoubted
- unerring
- unmistakable
- unquestionable
- verifiable
- ascertained
- confirmable
- establishable
- having down pat
- on ice
- predestined
- true
- absolute
- authoritative
- clear
- conclusive
- definite
- demonstrable
- destined
- determined
- evident
- firm
- fixed
- genuine
- guaranteed
- hard
- in the bag
- inarguable
- incontestable
- incontrovertible
- indisputable
- indubitable
- infallible
- irrefutable
- known
- plain
- positive
- provable
- real
- reliable
- safe
- set
- sound
- supreme
- sure
- sure thing
- trustworthy
- unambiguous
- unassailable
- undeniable
- undoubted
- unequivocal
- unerring
- unmistakable
- unquestionable
- verifiable
- ascertained
- confirmable
- establishable
- having down pat
- on ice
- predestined
- true
- precise
- unblemished
- exquisite
- immaculate
- accurate
- aces
- clean
- correct
- exact
- faultless
- infallible
- innocent
- irreproachable
- nice
- perfect
- pure
- right
- sinless
- stainless
- unerring
- unimpeachable
- errorless
- unflawed
- ten
- A-okay
- apple-pie
- fleckless
- incorrupt
- note-perfect
- on target
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- flawed
- partial
- dependent
- yielding
- limited
- circumscribed
- imprecise
- false
- conditional
- submissive
- compliant
- complaisant
- tractable
- restricted
- accountable
- incorrect
- inexact
- unsure
- uncertain
- imperfect
- indefinite
- vague
- questionable
- equivocal
- ambiguous
- left
- unhealthy
- unfit
- mad
- unfitting
- corrupt
- false
- improper
- invalid
- wrong
- imprecise
- flawed
- insane
- unsuited
- inappropriate
- inadmissible
- unjust
- unfair
- inequitable
- immoral
- imperfect
- uncertain
- inexact
- unreliable
- untrue
- dishonest
- incomplete
- incorrect
- unsuitable
- unreal
- unacceptable
- inaccurate
- unconfident
- humbled
- doubted
- wavering
- dubious
- doubtful
- wobbly
- unsteady
- variable
- unsure
- indefinite
- uncertain
- hesitant
- doubting
- doubtful
- careless
- invalid
- false
- wrong
- imprecise
- questionable
- mistaken
- misleading
- erroneous
- vague
- lax
- faulty
- incorrect
- unreal
- counterfeit
- uncertain
- indefinite
- untruthful
- dishonest
- unreliable
- inexact
- inconclusive
- inaccurate
- incomplete
- unfixed
- faltering
- dubious
- unconfident
- obscure
- doubted
- doubtful
- invalid
- false
- unpredictable
- undecided
- unreliable
- questionable
- hesitant
- doubting
- vague
- indistinct
- unclear
- unreal
- counterfeit
- unsure
- uncertain
- indefinite
- dishonest
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.