indefinite

UK: /ɪnˈdɛfənət/ US: /ɪnˈdɛfənɪt/ ,(in def′ə nit)

WordReference Random House Learner's Dictionary of American English © 2025

in•def•i•nite /ɪnˈdɛfənɪt/   adj. 

1. having no fixed or specified limit:
   an indefinite number.
2. not clearly defined:
   an indefinite boundary between the two countries.
3. not firmly decided;
   vague:
   was indefinite about joining us for lunch.

in•def•i•nite•ly, adv. See -fin-.

WordReference Random House Unabridged Dictionary of American English © 2025

in•def•i•nite  (in def′ə nit), adj. 

1. not definite;
   without fixed or specified limit;
   unlimited:
   an indefinite number.
2. not clearly defined or determined;
   not precise or exact:
   an indefinite boundary; an indefinite date in the future.
3. Grammar
   • Grammar See indefinite article. 
   • Grammar See indefinite pronoun. 
4. [Bot.]
   • Botany very numerous or not easily counted, as stamens.
   • Botany (of an inflorescence) indeterminate.

• Latin indēfīnītus. See in-³, definite
• 1520–30

in•def′i•nite•ly, adv. 
in•def′i•nite•ness, n. 
Synonyms

• 1. unspecified; indeterminate.
• 2. imprecise, inexact, indistinct, confusing, vague, uncertain.

Antonyms

• 1, 2. determinate.
• 2. clear, specific.

Collins Concise English Dictionary © HarperCollins Publishers::

indefinite / ɪnˈdɛfɪnɪt/ adjective

1. not certain or determined; unsettled
2. without exact limits; indeterminate: an indefinite number
3. vague, evasive, or unclear

inˈdefiniteness noun