adv ·Uncommon ·Advanced level

Definitions

Adverb

1. 1
   In an erratic manner; unsteadily or randomly, unpredictably.

   "When I saw the other driver weaving erratically across the road, I decided to keep my distance."

Adverb

1. 1
   in an erratic unpredictable manner wordnet

Synonyms

All synonyms

at randomback and forthby chancecarelesslychaoticallyfitfully

Example

More examples

"Tom began to behave erratically."

Etymology

From erratic + -ally.

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