Synonyms of the word

industrious

• adj. Hard-working and persistent.

diligent

• adj. Performing with intense concentration, focus, responsible regard.

energetic

• adj. Possessing, exerting, or displaying energy.
• adj. Of or relating to energy.

enterprising

• adj. Displaying bravery and daring in the attempt of some task.
• adj. Being very able and ingenious in business dealings.

gumptious

• adj. (nonce word, colloquial) Having gumption.

hardworking

• adj. Of a person, taking their work seriously and doing it well and rapidly.

tireless

• adj. Indefatigable, untiring and not yielding to fatigue.
• adj. Without a tire (wheel covering); tyreless.

untiring

• adj. Not able to be tired; inexhaustible.
• adj. Unfailing; resolute.

up-and-coming

• adj. (idiomatic) emerging; aspiring; improving; beginning to attract attention or critical acclaim.