Characteristic of or befitting a girl: girlish charm. (adjective)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "girlish" in a sentence
"So, in girlish romance and sudden resolution, the little maids sealed a compact which was never broken, and began a friendship which lasted and grew in beauty and strength all through their lives."
"I hardly knew whether she would refuse it, or burst out crying – in girlish fashion."
"It was a relief to her, to leave that sunny little island where she had been for her holiday in girlish days; a relief to go among strange mountains, where, - as in the calm world to come, - there should be "no more sea;" where she could not daily behold those restless waves; whose vain change of light and shade, of storm and fair weather, gave her back incessantly one single picture, of the yacht by moonlight, with David Stuart clasping her in his arms, while the heavy brig was passing which had nearly run them down."