Synonyms of the word

cumbersome

• adj. Burdensome or hindering, as a weight or drag; vexatious.
• adj. Not easily managed or handled; awkward.
• adj. Hard, difficult, demanding to handle or get around with.

awkward

• adv. (obsolete) In a backwards direction.
• adj. Lacking dexterity in the use of the hands, or of instruments.
• adj. Not easily managed or effected; embarrassing.
• adj. Lacking social skills, or uncomfortable with social interaction.
• adj. Perverse; adverse; difficult to handle.
• n. Someone or something that is awkward.

clumsy

• adj. awkward, lacking coordination, not graceful, not dextrous.
• adj. Not elegant or well-planned, lacking tact or subtlety.
• adj. awkward or inefficient in use or construction, difficult to handle or manage especially because of shape.
• n. (informal, fairly rare) A clumsy person.

cumbrous

• adj. Unwieldy because of its weight; cumbersome.
• adj. (obsolete) Giving trouble; vexatious.

inapt

• adj. Unapt; not apt; unsuitable; inept.

inept

• adj. Not able to do something; not proficient; displaying incompetence.
• adj. Unfit; unsuitable.

infelicitous

• adj. Unhappy or unfortunate.
• adj. Inappropriate or awkward; not well said, expressed, or done.

unmanageable

• adj. Not manageable; not readily submitting to handling or management; not easily restrained, governed, or…

unwieldy

• adj. (obsolete) Lacking strength; weak.
• adj. (obsolete) Ungraceful in movement.
• adj. Difficult to carry, handle, manage or operate because of its size, weight, shape or complexity.
• adj. Badly managed or operated.