Siccar

adj, adv

adj, adv ·Rare ·Advanced level

Definitions

Adjective
  1. 1
    Alternative spelling of sicker: certain alt-of, alternative
  2. 2
    Alternative spelling of sicker: secure alt-of, alternative
Adverb
  1. 1
    Alternative spelling of sicker: certainly alt-of, alternative
  2. 2
    Alternative spelling of sicker: securely alt-of, alternative

Synonyms

All synonyms
assuredassuredcertainconfirmeddestinedsure

Etymology

From Middle English siker (“secure, safe, stable, certain; gewiss, securely, safely, certainly”), from Old English sicer. For more, see sicker.

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