the.com/afterthought

The idea you had after it was too late to matter, delivered with full confidence anyway.

means Something added or thought of later, after the main decision or plan was already finished.

from A straightforward compound from 'after' + 'thought,' first thinking of things literally added after the main event — appearing in English by the 1600s-1700s to describe an idea arriving too late to be part of the original plan.

etymology
literally means a thought added after the fact
design term
security is often one, which is why breaches happen
relationship red flag
being included but never consulted
irony
this definition almost was one too
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