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From unceremonious + -ly or un- + ceremoniously.
Etymology from Wiktionary, CC BY-SA 4.0.
unceremoniously
Today it means: In an unceremonious manner, abruptly, without the due formalities. Full definition →
Today it means: In an unceremonious manner, abruptly, without the due formalities. Full definition →
From unceremonious + -ly or un- + ceremoniously.
Etymology from Wiktionary, CC BY-SA 4.0.