improbable

Adjective

• not likely to be true or to occur or to have occurred
  • "an improbable event"

Adjective Satellite

• having a probability too low to inspire belief
• too improbable to admit of belief

Adj

• Not likely to be true.
• Not likely to happen.

Examples

• Due to the loss of power, it is improbable that we will begin on time.
• It's highly improbable that aliens abducted you.

Synonyms

marvellous, marvelous, tall, unbelievable, unconvincing, unlikely

Antonyms

probable

Related Words

impossible, probability, probably