SMARTEN UP meaning: Improve behavior or increase intelligence

We found 16 dictionaries that define the word smarten up:

General (13 matching dictionaries)

smarten up: Longman Dictionary of Contemporary English
smarten up: Merriam-Webster
smarten up: Oxford Learner's Dictionaries
smarten up: Vocabulary.com
smarten (sb/sth) up: Cambridge Advanced Learner's Dictionary
smarten up: Wiktionary
smarten up: Dictionary.com
smarten up: Rhymezone
smarten up: FreeDictionary.org
smarten up: Mnemonic Dictionary
smarten up: TheFreeDictionary.com

Computing (1 matching dictionary)

smarten up: Encyclopedia

Miscellaneous (1 matching dictionary)

smarten up: Idioms

Slang (1 matching dictionary)

smarten up: Urban Dictionary

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Definitions from Wiktionary (smarten up)

▸ verb:  (intransitive) To wear smart clothes and look more stylish
▸ verb:  (intransitive) To become less stupid or naive
▸ verb:  (transitive) To make less stupid or naive

Opposite:

dumb down, simplify, downgrade

Types:

spruce up, tidy up, cleup, fix up, more...

▸ Words similar to smarten up

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