FAQs About the word unfrivolous

严肃的

not frivolous

郑重,认真的,有尊严的,坟墓,忧郁,严肃的,严重,清醒,庄严的,阴郁的

傻乎乎的,头晕的,轻浮的,多泡沫的,无益的,眩晕,幼稚的,粗心大意,有酵母的,糊涂虫

unfreezing => 解冻, unfreedom => 不自由, unforthcoming => 守口如瓶的, unfolds => 展开, unfolded => 折叠,