adv ·5 syllables ·Rare ·Advanced level

Definitions

Adverb

1. 1
   Not sufficiently.

   "The machine was decommissioned because it was producing widgets insufficiently."

Adverb

1. 1
   to an insufficient degree wordnet

Synonyms

All synonyms

badlyinadequatelyincompletelyintolerably

Antonyms

All antonyms

sufficiently

Example

More examples

"The Japanese are often criticized for being inward looking and insufficiently international in their outlook."

Etymology

From insufficient + -ly or in- + sufficiently.

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