stiffly

clumsily

bunglingly carelessly fumblingly gawkily gracelessly inelegantly ineptly lumberingly unadroitly uncouthly ungracefully unskillfully with difficulty

adroitly gracefully skillfully

rigidly securely solidly soundly strongly thoroughly tightly

hard

durably enduringly fast fixedly inflexibly like a rock motionlessly solid stably steadily substantially tight unflinchingly unshakeably

changeably flexibly indefinitely movably waveringly weakly