adj, noun, verb ·Uncommon ·Advanced level

Definitions

Noun

1. 1
   The armpit. attributive, often

   "underarm deodorant"

2. 2
   Old-fashioned and now outlawed style of bowling in which the arm is not swung over the shoulder.

Verb

1. 1
   To supply with insufficient weaponry. transitive

Adjective

1. 1
   For use under the arm. not-comparable

   "A 1997 study found that about 104 million American women were using underarm deodorant products."

Adjective

1. 1
   with hand brought forward and up from below shoulder level wordnet

Adverb

1. 1
   with the hand swung below shoulder level wordnet

Synonyms

All synonyms

armholearmpitarmpitoxterunderhandunderhand

Antonyms

All antonyms

overarm

Example

More examples

"A 1997 study found that about 104 million American women were using underarm deodorant products."

Etymology

From under- + arm. The armpit sense is not old, historically speaking (1920s), and it is believed to have arisen as a euphemism in advertising.

Related phrases

underarm crutch

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.