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- pronunciation:
- rae
sh
nl
- features:
- Word Explorer, Word Parts
| part of speech: |
adjective |
| definition 1: |
based on sound reasoning; sensible.
Deciding not to get married just yet was a rational choice for her.- synonyms:
- sensible
- antonyms:
- absurd, arbitrary, illogical, irrational
- similar words:
- logical, reasonable, reasoning, sane, sound
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| definition 2: |
in control of one's mind; not insane or crazy.
He became so angry that he was no longer rational.- synonyms:
- sane
- antonyms:
- irrational
- similar words:
- responsible, right, sober, sound
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| definition 3: |
able to think or think clearly and logically.
Humans are rational creatures.- similar words:
- intellectual, logical
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| related words: |
mental, normal, sage |
| derivations: |
rationally (adv.), rationalness (n.) |
The word rational
contains the following part:
-al2, -ial, -ual
Latin
adjective-forming suffix
that means pertaining to
  More about this word part:
The suffix -al2, -ial
attaches primarily to nouns ( national
, environmental
) but sometimes to Latin or Greek roots ( final
, capital
, comical
) to form adjectives. See also -ar1.
Example words:
abnormal, accidental, additional, aerial, annual, artificial, biblical, brutal, capital, central, chemical, classical, coastal, colonial, comical, commercial, confidential, constitutional, continual, controversial, conventional, criminal, critical, crucial, cultural, cylindrical, dental, detrimental, developmental, economical, editorial, educational, electrical, emotional, environmental, essential, equal, exceptional, experimental, facial, factual, federal, final, financial, floral, formal, functional, fundamental, general, global, grammatical, habitual, historical, hysterical, illogical, immoral, impersonal, impractical, individual, industrial, influential, internal, legal, local, logical, lyrical, magical, mathematical, memorial, mental, moral, mortal, musical, mythical, national, natural, nautical, neutral, normal, official, parental, personal, plural, political, potential, racial, rational, regional, irrational, intellectual, rhythmical, seasonal, spinal, spiritual, technological, thermal, tidal, traditional, tribal, typical, universal, unnatural, verbal, virtual, vocal, visual
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