English dictionary

improbable

/I/m'pr/A/b/@/b/@/l/

Definitions, examples, synonyms and antonyms from WordNet 3.0.

adjective

not likely to be true or to occur or to have occurred

adj.all

Examples
An improbable event.

Synonyms unlikely

Antonyms likely probable

Source: WordNet 3.0
Not probable; unlikely to be true; not to be expected under the circumstances or in the usual course of events; as, an <i>improbable</i> story or event.

adjective

Source: webster1913