In an inconstant manner, variably, with fickleness, inconsistently.

In a changing manner; with constant change, variety, or fluctuation.

In a changing, varying, or inconstant manner.

In a variable, inconstant, or uncertain manner; changeably, with variation.

As adv.; only in combination with participial adjectives.

In a mutable manner; with the capacity for change; (also) with constant change or variation.

In a changeful, varying, or inconstant manner.

figurative. (In predicative use, passing into adjective.) Varying, changeable, unstable. Now also often in sense ‘of varying quality’.

‘changingly, shiftingly’ (Webster, 1847).

after the manner of a kaleidoscope, with continual changes.

In a shifty manner.