All know one's onions synonyms

adj know one's onions

• skilled — having skill; trained or experienced in work that requires skill.
• effective — adequate to accomplish a purpose; producing the intended or expected result: effective teaching methods; effective steps toward peace.
• capable — If a person or thing is capable of doing something, they have the ability to do it.
• efficient — (esp. of a system or machine) Achieving maximum productivity with minimum wasted effort or expense.
• responsible — answerable or accountable, as for something within one's power, control, or management (often followed by to or for): He is responsible to the president for his decisions.
• prepared — properly expectant, organized, or equipped; ready: prepared for a hurricane.
• keen — finely sharpened, as an edge; so shaped as to cut or pierce substances readily: a keen razor.
• intelligent — having good understanding or a high mental capacity; quick to comprehend, as persons or animals: an intelligent student.
• smart — having or showing quick intelligence or ready mental capability: a smart student.
• accomplished — If someone is accomplished at something, they are very good at it.
• adroit — Someone who is adroit is quick and skilful in their thoughts, behaviour, or actions.
• agile — Someone who is agile can move quickly and easily.
• artful — If you describe someone as artful, you mean that they are clever and skilful at achieving what they want, especially by deceiving people.
• au fait — If you are au fait with something, you are familiar with it and know about it.
• brilliant — A brilliant person, idea, or performance is extremely clever or skilful.
• clever — Someone who is clever is intelligent and able to understand things easily or plan things well.
• deft — A deft action is skilful and often quick.
• dexterous — Someone who is dexterous is very skilful and clever with their hands.
• effectual — producing or capable of producing an intended effect; adequate.
• facile — moving, acting, working, proceeding, etc., with ease, sometimes with superficiality: facile fingers; a facile mind.
• gifted — having great special talent or ability: the debut of a gifted artist.
• ingenious — characterized by cleverness or originality of invention or construction: an ingenious machine.
• learned — having much knowledge; scholarly; erudite: learned professors.
• masterful — dominating; self-willed; imperious.
• masterly — like or befitting a master, as in skill or art; worthy of a master; very skillful: a masterly presentation of the budget.
• powerful — physically strong, as a person: a large, powerful athlete.
• practiced — skilled or expert; proficient through practice or experience: a practiced hand at politics.
• proficient — well-advanced or competent in any art, science, or subject; skilled: a proficient swimmer.
• qualified — having the qualities, accomplishments, etc., that fit a person for some function, office, or the like.
• savvy — experienced, knowledgable, and well-informed; shrewd (often used in combination): consumers who are savvy about prices; a tech-savvy entrepreneur.
• sharp — having a thin cutting edge or a fine point; well-adapted for cutting or piercing: a sharp knife.
• skillful — having or exercising skill: a skillful juggler.
• talented — having talent or special ability; gifted.
• trained — Railroads. a self-propelled, connected group of rolling stock.
• with it — (in children's games) the player called upon to perform some task, as, in tag, the one who must catch the other players.
• know the ropes — to perceive or understand as fact or truth; to apprehend clearly and with certainty: I know the situation fully.
• there — in or at that place (opposed to here): She is there now.
• up to snuff — to draw in through the nose by inhaling.
• up to speed — rapidity in moving, going, traveling, proceeding, or performing; swiftness; celerity: the speed of light; the speed of sound.