
Apt
Expectations of Behavior
Use 'apt' to express a future action seen as characteristic based on past behavior.
He's apt to forget his keys.
Subtle Probability
'Apt' indicates a good chance of something happening, but not certainty.
Travelers are apt to face delays during the storm.
Personal Tendency
Use it to hint at someone's tendencies without being derogatory.
Children are apt to be playful.