Crackerjack
adj.capable, energeticplayful
What it means
Exceptionally skillful, effective, or excellent.
Reach for it when giving lively informal praise to a person, team, or piece of work
A crackerjack mechanic returned the delivery van before the morning route.
Choose between these
6- playful
short informal praise suits a skilled person
not when Ace is breezy, region-dependent, and may be unclear as an adjective.
- everyday
strong colloquial praise fits work or service
not when Top-notch is generic enthusiasm and can sound promotional.
- professional
high quality should be stated without slang
not when Excellent is broad and lacks crackerjack's emphasis on energetic competence.
- professional
developed knowledge or skill is the precise claim
not when Expert is a status claim and does not describe an excellent object or result.
- formal
the subject belongs in the highest quality tier
not when First-rate can sound dated and needs evidence for a ranking claim.
- literary
unusually high quality deserves elevated praise
not when Superb emphasizes quality, not quick practical effectiveness.
Said against
3- inept
- mediocre
- second-rate
It naturally appears in
3- crackerjack team
A crackerjack team traced the leak without closing the whole building.
- crackerjack job
The apprentice did a crackerjack job matching the old joint.
- crackerjack mechanic
The crackerjack mechanic documented every reused part.
Where this comes from
Crackerjack is informal, chiefly North American, and somewhat old-fashioned.
- merriam-webster, adjective sense 1 opens in a new tab · retrieved 2026-07-26
The definition and the example on this page are written here. The dictionaries above ground which meaning is being described, not the wording.