Definition of not in the slightest
- "Does it bother you?" "Not in the slightest."
: having a slim or delicate build : not stout or massive in body
: lacking in strength or substance : flimsy, frail
: deficient in weight, solidity, or importance : trivial
: to treat as slight or unimportant : make light of
: to treat with disdain or indifference
: to perform or attend to carelessly and inadequately
What made you want to look up not in the slightest? Please tell us where you read or heard it (including the quote, if possible).