rational

/ˈɹæʃ(ə)nəl/
adjectivenoun

Capable of reasoning.

NWL Collins ENABLE

Adjective 4 meanings

  1. Capable of reasoning.

    “Man is a rational creature.”

  2. Logically sound; not self-contradictory or otherwise absurd.

    “His statements were quite rational.”

  3. Healthy or balanced intellectually; exhibiting reasonableness.

    “rational conduct”

  4. Comprising, or expressible as, a ratio

    “¾ is a rational number, but √2 is an irrational number.”

Noun 1 meaning

  1. A rational number: a number that can be expressed as the quotient of two integers.

    “The quotient of two rationals is again a rational.”

Definitions: Wiktionary (CC BY-SA) via Kaikki/Wiktextract

Where it comes from

Etymology

From Old French rationel, rational, from Latin rationalis (“of or belonging to reason, rational, reasonable; having a ratio”), from ratio (“reason; calculation”).

Similar and opposite words

Opposite
absurdirrationalnonsensicalarbitraryarational

RATIONAL at a glance

RATIONAL has 8 letters and scores 8 points in Scrabble (R 1 + A 1 + T 1 + I 1 + O 1 + N 1 + A 1 + L 1) and 10 in Words With Friends, before board bonuses. It ranks #6,409 by how often it appears in everyday English. It is valid in ENABLE, NWL2023, Collins/SOWPODS.

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