clear thinking

Related
  • lucidMentally sharp and comprehensible
  • sharpFine-edged, or astute
  • focusedDirecting attention narrowly
  • rationalGoverned by logic
  • clarityState of being understandable

logic · precise · coherent · analytical · reasoned · alert · discerning · sober · level-headed · incisive · methodical · astute · penetrating · crisp · unclouded · keen · deliberate · mindful

Opposites
mental clarity

clear thinkingfuzzy thinking

Unclear, imprecise reasoning

mental fog · befuddlement · disorientation · incoherence · scattered thinking

rationality

clear thinkingfuzzy logic

Reasoning with gradations, not absolutes

wishful thinking · emotional reasoning · magical thinking · faulty reasoning · cognitive bias

mental state/sobriety

clear thinkingintoxication

Substance-induced mental impairment

delirium · stupor · drunkenness · inebriation · altered state

Familiarity
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