Meaning

4 senses
  1. (transitive)To do something insufficiently; especially, to undercook.

    Sorry to say, I've underdone the pot roast. I think we'd better put it back in the oven for a bit.

    Sorry to say, I've underdone the downspout repair. I think we'd better hire someone to replace the whole thing.

  2. To do something insufficiently; especially, to undercook.

    (transitive)To do less than is requisite.

    Near-synonyms: (of tasks) half-ass, shortchange, phone in

    We warned him not to underdo it. This customer expects attention to detail.

  3. (intransitive, transitive, uncommon)To act below one's abilities; do less than one can.

    Near-synonyms: underachieve, slack off

  4. (obsolete, transitive)To put under, subject.

Origin

From Middle English underdon, from Old English underdōn (“to put under”), from Proto-Germa

From Middle English underdon, from Old English underdōn (“to put under”), from Proto-Germanic *under + *dōną (“to put”). Equivalent to under- + do. Cognate with German unterthun (“to put under, subject”).

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Forms

underdoes, underdoing, underdid, underdone
Base formunderdo · to underdo
3rd person singularunderdoes
Present participleunderdoing
Past simpleunderdid
Past participleunderdone

irregular · Lesson

Present simpleLesson

I, you, we, theyunderdo
he, she, itunderdoes

Past simpleLesson

all personsunderdid

Present perfectLesson

I, you, we, theyhave underdone
he, she, ithas underdone

Future simple (will)Lesson

all personswill underdo

Synonyms

5 synonyms

Antonyms

2 antonyms

Word family

1 related words
Derivedunderdoer

See also

neighbours in the dictionary
underdo — meaning, examples, forms, synonyms | Krumeto