Crossword clue: in a puerile manner; childishly.
1 answer found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).
Possible answers
displaying or suggesting a lack of maturity
1 answer found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).
displaying or suggesting a lack of maturity