the.com/complacency
The smug feeling right before the thing you ignored becomes the thing that wrecks you.
means A self-satisfied lack of concern that makes you stop trying, watching, or improving while danger quietly grows.
from From Latin complacere, to please greatly — originally a virtue (calm contentment), now the vice of being too pleased to pay attention.
Linguistic cousinShares roots with placid and please.
Tone flipOnce meant kindly graciousness, now means lazy overconfidence.
Twin wordComplaisance still means eager-to-please politeness.