[うく, uku](v5k, vi) (1) to float; (2) (See 浮かぬ顔) to become merry; to be cheerful; (3) to become loose; to become unsteady; (4) (col) to feel out of it; to be cut off (e.g. from those around you); to feel out of place; (5) to be frivolous; to be uncertain; (6) to have no basis; to be unreliable; (P)[Add to Longdo]