Bygone
Part of speech: adjective
Definition: Having been or happened in the far past.
Part of speech: noun
Definition: A person or occurrence that took place in the past.
Past
Part of speech: adverb
Definition: in a direction that passes
Part of speech: preposition
Definition: beyond in place, quantity or time
Part of speech: noun
Definition: The period of time that has already happened, in contrast to the present and the future.The past tense.
Part of speech: adjective
Definition: Having already happened; in the past; finished.Relating to the past.(of a period of time) the one before this one
Example sentence: I'm looking forward to the future, and feeling grateful for the past.