water under the bridge
Speech parts
1. water under the bridge - Noun
2. water under the bridge - Phrase
Meaning
past events to be put aside
Source: WordNetSynonyms
bygone
anciently
lately
heretofore
long ago
radically
at one time
aforetime
erewhile
in the past
of old
back when
of yore
bygones
water over the dam
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Antonyms
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Examples
let bygones be bygones