unfoolable
Sees through deception
Unable to be deceived or tricked.
Someone unfoolable sees through lies, scams, and manipulation: She's unfoolable—don't even try to talk your way out of this.
The word implies sharp judgment or hard-won skepticism, though claiming to be unfoolable often invites someone to prove otherwise.
Wisdom keeper or seasoning
- prudentExercising sound judgment
- judiciousHaving sound assessment skills
- experiencedHaving practical knowledge gained
- learnedHaving much knowledge
enlightened · knowledgeable · sensible · mature · seasoned · battle-tested · worldly · sophisticated
Fine-edged, or astute
- keenSharp or enthusiastic
- astuteMentally sharp, discerning
- discerningHaving keen judgment
- insightfulHaving penetrating discernment
observant · clear-sighted · penetrating · alert · vigilant · watchful · attentive · aware
Uncertain of truth
- questioningSeeking answers through inquiry
- incredulousExpressing unwillingness to believe
- disbelievingRefusing to accept something
- criticalExpressing disapproval or importance
suspicious · wary · leery · distrustful · cynical · scrutinizing · guarded · circumspect
Cannot be misled
- uncheatableImpossible to defraud
- immuneProtected from harm
- impenetrableImpossible to pass through
- proofDemonstration of truth
Cannot be bought
- unswayableCannot be persuaded
- principledHaving strong moral beliefs
- steadfastFirmly loyal, unshakeable
- resoluteFixed in purpose
immovable · impervious · unassailable · integrity · incorruptible · honest · upright · moral
sage
Wisdom keeper or seasoning
- prudentExercising sound judgment
- judiciousHaving sound assessment skills
- experiencedHaving practical knowledge gained
learned · enlightened · knowledgeable · sensible · mature · seasoned · battle-tested · worldly · sophisticated · erudite
sharp
Fine-edged, or astute
- keenSharp or enthusiastic
- astuteMentally sharp, discerning
- discerningHaving keen judgment
insightful · observant · clear-sighted · penetrating · alert · vigilant · watchful · attentive · aware · quick-witted
doubtful
Uncertain of truth
- questioningSeeking answers through inquiry
- incredulousExpressing unwillingness to believe
- disbelievingRefusing to accept something
critical · suspicious · wary · leery · distrustful · cynical · scrutinizing · guarded · circumspect · cautious
undeceivable
Cannot be misled
- uncheatableImpossible to defraud
- immuneProtected from harm
- impenetrableImpossible to pass through
unbribable
Cannot be bought
- unswayableCannot be persuaded
- principledHaving strong moral beliefs
- steadfastFirmly loyal, unshakeable
resolute · immovable · impervious · unassailable · integrity · incorruptible · honest · upright · moral · uncompromising
unfoolablesimple-minded
Lacking mental acuity
obtuse · dim-witted · slow-witted · dense · thick
fool, foolish, foolishly, foolishness, fools, fooled, fooling, foolery, foolable