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
- categorical
- definite
- exact
- factual
- genuine
- infallible
- undeniable
- unequivocal
- unmitigated
- unquestionable
- positive
- actual
- conclusive
- consummate
- decided
- decisive
- fixed
- precise
- sure
- unambiguous
- certain
- imminent
- unavoidable
- assured
- fated
- ineluctable
- ineludible
- inerrant
- inescapable
- inevasible
- inexorable
- infallible
- returnless
- undeniable
- unescapable
- correct
- perfect
- proper
- sure
- true
- valid
- absolute
- amen
- complete
- exact
- faithful
- nice
- real
- sound
- utter
- admissible
- authentic
- bona fide
- factual
- free of error
- genuine
- immaculate
- indubitable
- inerrant
- infallible
- just
- on the money
- on the nose
- out-and-out
- punctilious
- right as rain
- righteous
- right on
- rigorous
- satisfactory
- solemn
- strict
- thoroughgoing
- undistorted
- undoubted
- unerring
- unmistaken
- veracious
- veridical
- veritable
- watertight
- assured
- certain
- bound
- guaranteed
- indisputable
- ineluctable
- inerrant
- inescapable
- infallible
- irrevocable
- surefire
- unavoidable
- unerring
- unfailing
- certain
- errorless
- exact
- faultless
- impeccable
- inerrable
- inerrant
- infallible
- invariable
- just
- perfect
- reliable
- sure
- true
- trustworthy
- unfailing
- bottomless
- boundless
- eternal
- inexhaustible
- steadfast
- unflagging
- absolute
- assiduous
- ceaseless
- come-through
- consistent
- constant
- continual
- continuing
- continuous
- counted-on
- delivering
- dependable
- diligent
- dyed-in-the-wool
- endless
- faithful
- infallible
- invariable
- loyal
- never-failing
- persistent
- reliable
- rock solid
- same
- solid
- staunch
- straight
- sure
- surefire
- there
- tried-and-true
- true
- trustworthy
- unlimited
- unrelenting
- authentic
- authoritative
- conclusive
- correct
- definite
- definitive
- exact
- factual
- perfect
- strict
- true
- truthful
- valid
- absolute
- actual
- certain
- errorless
- faultless
- final
- flawless
- genuine
- infallible
- irrefutable
- official
- on-target
- right
- straight
- undeniable
- undisputed
- unimpeachable
- unquestionable
- unrefuted
- veracious
- absolute
- clear
- definite
- genuine
- positive
- real
- safe
- sure
- true
- undeniable
- ascertained
- authoritative
- conclusive
- confirmable
- demonstrable
- destined
- determined
- establishable
- evident
- firm
- fixed
- guaranteed
- having down pat
- incontrovertible
- indubitable
- infallible
- in the bag
- irrefutable
- known
- on ice
- plain
- predestined
- provable
- reliable
- salted away
- set
- sound
- supreme
- trustworthy
- unambiguous
- undoubted
- unequivocal
- unerring
- unmistakable
- verifiable
- absolute
- ascertained
- authoritative
- clear
- conclusive
- confirmable
- definite
- demonstrable
- destined
- determined
- establishable
- evident
- firm
- fixed
- genuine
- guaranteed
- hard
- having down pat
- incontestable
- incontrovertible
- indisputable
- indubitable
- infallible
- in the bag
- irrefutable
- known
- on ice
- plain
- positive
- predestined
- provable
- real
- reliable
- safe
- salted away
- set
- sound
- supreme
- sure
- sure thing
- true
- trustworthy
- unambiguous
- unassailable
- undeniable
- undisputable
- undoubted
- unequivocal
- unerring
- unmistakable
- unquestionable
- verifiable
- absolute
- ascertained
- authoritative
- clear
- conclusive
- confirmable
- definite
- demonstrable
- destined
- determined
- establishable
- evident
- firm
- fixed
- genuine
- guaranteed
- hard
- having down pat
- inarguable
- incontrovertible
- indisputable
- indubitable
- infallible
- in the bag
- irrefutable
- known
- on ice
- plain
- positive
- predestined
- provable
- real
- reliable
- safe
- salted away
- set
- sound
- supreme
- sure
- sure thing
- true
- trustworthy
- unambiguous
- unassailable
- undeniable
- undisputable
- undoubted
- unequivocal
- unerring
- unmistakable
- unquestionable
- verifiable
- absolute
- conclusive
- indisputable
- infallible
- irrefutable
- undeniable
- unequivocal
- ascertained
- authoritative
- clear
- confirmable
- definite
- demonstrable
- destined
- determined
- establishable
- evident
- firm
- fixed
- genuine
- guaranteed
- hard
- having down pat
- inarguable
- incontestable
- incontrovertible
- indubitable
- in the bag
- known
- on ice
- plain
- positive
- predestined
- provable
- real
- reliable
- safe
- salted away
- set
- sound
- supreme
- sure
- sure thing
- true
- trustworthy
- unambiguous
- undisputable
- undoubted
- unerring
- unmistakable
- unquestionable
- verifiable
- absolute
- ascertained
- authoritative
- clear
- conclusive
- confirmable
- definite
- demonstrable
- destined
- determined
- establishable
- evident
- firm
- fixed
- genuine
- guaranteed
- hard
- having down pat
- inarguable
- incontestable
- incontrovertible
- indisputable
- indubitable
- infallible
- in the bag
- irrefutable
- known
- on ice
- plain
- positive
- predestined
- provable
- real
- reliable
- safe
- salted away
- set
- sound
- supreme
- sure
- sure thing
- true
- trustworthy
- unambiguous
- unassailable
- undeniable
- undoubted
- unequivocal
- unerring
- unmistakable
- unquestionable
- verifiable
- exquisite
- immaculate
- precise
- unblemished
- accurate
- aces
- A-okay
- apple-pie
- clean
- correct
- errorless
- exact
- faultless
- fleckless
- incorrupt
- infallible
- innocent
- irreproachable
- nice
- note-perfect
- on-target
- perfect
- pure
- right
- sinless
- stainless
- ten
- unerring
- unflawed
- unimpeachable
On this page you'll find 645 synonyms, antonyms, and words related to in-fallible, such as: authoritative, flawless, foolproof, unbeatable, acceptable, and accurate.
- ambiguous
- equivocal
- false
- imperfect
- imprecise
- incorrect
- indefinite
- inexact
- questionable
- uncertain
- unsure
- vague
- accountable
- circumscribed
- complaisant
- compliant
- conditional
- dependent
- flawed
- limited
- partial
- restricted
- submissive
- tractable
- yielding
- false
- flawed
- imprecise
- inaccurate
- incorrect
- invalid
- unacceptable
- wrong
- imperfect
- incomplete
- inexact
- uncertain
- unreliable
- untrue
- inadmissible
- doubtful
- doubting
- hesitant
- uncertain
- doubted
- dubious
- humbled
- indefinite
- unconfident
- unsteady
- unsure
- variable
- wavering
- wobbly
- counterfeit
- dishonest
- false
- imprecise
- inaccurate
- incomplete
- inconclusive
- incorrect
- indefinite
- inexact
- invalid
- uncertain
- unreal
- unreliable
- untruthful
- wrong
- careless
- doubtful
- erroneous
- faulty
- lax
- misleading
- mistaken
- questionable
- vague
- counterfeit
- doubted
- doubtful
- false
- invalid
- uncertain
- unreal
- unsure
- vague
- questionable
- unpredictable
- unreliable
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.