01 a. Not definite; not limited, defined, or specified; not explicit; not determined or fixed upon; not precise; uncertain; vague; confused; obsc…
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1.
Not definite; not limited, defined, or specified; not explicit; not determined or fixed upon; not precise; uncertain; vague; confused; obscure; as, an indefinite time, plan, etc.“It were to be wished that . . . men would leave off that indefinite way of vouching, “the chymists say this,” or “the chymists affirm that.”” — Boyle.“The time of this last is left indefinite.” — Dryden.
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2.
Having no determined or certain limits; large and unmeasured, though not infinite; unlimited; as, indefinite space; the indefinite extension of a straight line.“Though it is not infinite, it may be indefinite; though it is not boundless in itself, it may be so to human comprehension.” — Spectator.
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3.
Boundless; infinite.[R.]“Indefinite and omnipresent God, Inhabiting eternity.” — W. Thompson (1745).
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4.
Too numerous or variable to make a particular enumeration important; -- said of the parts of a flower, and the like. Also, indeterminate.(Bot.)
Phrases & compounds
Indefinite article —
the word a or an, used with nouns to denote any one of a common or general class.
Indefinite proposition —
a statement whose subject is a common term, with nothing to indicate distribution or nondistribution; as, Man is mortal.
Indefinite term —
a negative term; as, the not-good.
Syn.
Inexplicit; vague; uncertain; unsettled; indeterminate; loose; equivocal; inexact; approximate.