Past Tense of “outshine”
The past tense of outshine is outshone; the past participle is outshone.
Why “outshine” behaves this way
"Outshine" combines "out-" with "shine," a verb that itself sits in a genuinely divided camp: British usage strongly prefers the irregular "shone" for both past forms, while American usage increasingly accepts the regularized "shined" as well, especially in the literal sense of a light shining. "Outshine" mostly followed the irregular path historically, likely because its dominant sense has always been figurative (surpassing someone in brilliance or quality) rather than literal light emission, and figurative senses tend to resist regularization longer than literal ones. The verb entered wide figurative use in the 17th and 18th centuries, especially in poetry and courtly writing praising one person's brilliance over another's, a register that likely reinforced the irregular "shone" form since formal, literary writing tends to preserve older irregular forms longer than casual speech does.
This is one case where the compound and its base verb have partly diverged in accepted usage: "shined" is now widely acceptable for the literal sense of light or a polished surface ("he shined his shoes," "the sun shined all day" in American usage), but "outshined" for the figurative sense of "the young performer outshined the veterans" is more contested — many style guides and dictionaries still list only "outshone" as standard, treating "outshined" as informal or nonstandard even where plain "shined" is accepted. Retail and product marketing writing has picked up "outshine" as a stock verb for comparing products ("this model outshines the competition"), a modern commercial extension of the older figurative sense of surpassing someone in brilliance or quality.
The common confusion
The confusion is genuinely a live usage question, not a simple error: is "outshined" acceptable, or must careful writers use "outshone"? Major dictionaries increasingly list both, but "outshone" remains the safer choice for formal writing, while "outshined" is common enough in journalism and casual prose that it won't read as wrong to most readers.
How it's actually used
"Outshine" is used almost entirely in the figurative sense of surpassing someone in skill, brilliance, or achievement ("the rookie outshone the veterans"), rarely in the literal sense of a light source outshining another, which makes it slightly different from plain "shine," where both senses remain common. Performance reviews, sports journalism, and entertainment writing use "outshine" constantly to describe one competitor, performer, or product surpassing another in visible quality, almost always with a clearly named rival being surpassed rather than a vague, unspecified comparison.
Across the tense system
Because "outshone" serves as both simple past and past participle, there is no vowel-shift distinction to worry about between "outshone yesterday" and "has outshone all season" — the identical form works in both slots, unlike verbs such as "outgrow" where the two forms diverge.
Common real mistakes
The main disagreement in usage is "outshined" versus "outshone," and while dictionaries increasingly accept both, the safest choice for formal or academic writing is still "outshone." A separate, genuine error is writing "outshinned" or "outshine" unchanged in clearly past-tense contexts. Writers should also be careful not to hypercorrect in the other direction — treating "outshined" as always wrong is itself a mild overcorrection, since it does appear in reputable published writing and in most major dictionaries as an accepted variant, just a less traditionally favored one. A further nuance: some editors specifically flag "outshined" in academic and legal writing as too informal, while accepting it more readily in journalism, sports writing, and marketing copy — genre matters as much as strict correctness here.
Examples
- The understudy outshone the lead on opening night.
- Her presentation outshone every other pitch in the competition.
- The new stadium lights have outshone the old ones by a wide margin.
- He outshone his older siblings academically from a young age.
- The supporting actress outshone the film's two leads.
- This year's harvest has outshone the previous three combined.
Memory trick
Picture "shone" as the polished, formal cousin of "shined" — for the figurative sense of besting someone, reach for "outshone" first, and you'll rarely be wrong even though "outshined" is creeping into acceptance.