MW→ultracool

ultracool

EnglishMerriam-Webster Dictionary

likely to change //a confirmed grouch who never seems to smile

Synonyms

bred-in-the-bone chronic dyed-in-the-wool habitual inveterate

Near Antonyms

unaccustomed unused

intermittent occasional

firmly established over time //a confirmed tendency to exaggerate about everything

Synonyms

bred-in-the-bone deep deep-rooted deep-seated entrenched (also intrenched) hard-core inveterate rooted settled

Near Antonyms

brief ephemeral fleeting impermanent interim momentary provisional short-lived short-term temporary transient

verb

Synonyms & Antonyms (Entry 2 of 2)

past tense of confirm

to give evidence or testimony to the truth or factualness of //several eyewitnesses who can confirm the defendant's account of what happened
Synonyms

argued attested authenticated bore out certified corroborated substantiated supported validated verified vindicated
Related Words

avouched