It consists of seven tracks, of which "Maniac" serves as lead single, and includes various musical genres such as hip hop, trap, EDM, and rock.

To promote Oddinary, Stray Kids embarked on their second concert tour, Maniac World Tour, which commenced in late April 2022 Oddinary peaked at number one on the album charts in South Korea, Finland, Poland, and the United States; and entered the top 10 in Belgium, Croatia, Denmark, Hungary, Japan, Lithuania, Sweden, and Switzerland.

[8] Their label JYP Entertainment stated the group "will solidify its presence and continue its surge in popularity through the extraordinary music, concept, and performance of the new well-made release".

[9] Oddinary is twenty-two minutes and three seconds long, and consists of seven tracks[10] in various musical genres including hip hop, trap, EDM, and rock.

Other songwriter-producers Versachoi, DallasK, Trippy, Jun2, Nickko Young, and Millionboy, most of whom the group has worked with previous records, also co-wrote songs for the release.

[10] In an online press conference to promote Oddinary, Changbin stated the EP has added relaxation, composure, and moderation more than the previous release, which focused on explosive energy, while according to Bang Chan: "We wanted to tell that the part of you which can seem odd and strange to people around you can serve as a special factor that can make you cooler and more gorgeous".

[15] It is followed by "Maniac", a trap[16] electropop[17] song whose bass-synth drop,[18] bird-chirping,[18] and power drill sound[17] tell the story of "odd " people who break the society's social norms and expectations,[19] comparing them with Frankenstein's monster.

[16] The third track "Charmer" is a hip hop[20] song that includes a snake-charmer-like flute sound[11] that is inspired by the story of the Pied Piper of Hamelin;[21] it is about self-confidence, which can charm others.

[18][11] "Freeze", the fourth track, is a riddim,[17] dubstep,[11][21] and EDM[21] song that is influenced by hip hop beats[19] and expresses the intention to overcome a problem, the excitement of breaking free, and the pursuit of dreams.

[17] The fifth track "Lonely St." is a rock[22] song that describes loneliness and feeling lost,[23] and the inner narrative of youths; it includes imagery of a person walking along an abandoned street.

[17][21] Oddinary concludes with Changbin's, Hyunjin's, Han's, and Felix's "Muddy Water", a jazzy[18] '90s hip hop,[11] boom bap,[21] and old-school[11][18] that discusses actions that reject contemporary societal values.

[21] On February 13, 2022, Stray Kids premiered a video trailer for their upcoming EP Oddinary at the end of a fan meeting at SKZ's Chocolate Factory.

[7] Directed by Kwon Yong-soo,[24] The video depicts band member Felix holding a padlock, boarding a bus, and entering a building with the neon sign "ORDINARY", which suddenly changes to read "ODDINARY".

[48] Stray Kids began promoting Oddinary with the debut performance of "Maniac" at KBS2's Music Bank,[49] and CBS's The Late Show with Stephen Colbert on March 18, the same date as the release.

The 42-show tour opened with shows from April 29 to May 1 at Jamsil Indoor Stadium, Seoul, South Korea,[63] and traveled to Japan, the United States, and the Asia Pacific region.

Rolling Stone India's Divyansha Dongre described it as a "powerful" EP and wrote of the group's "commitment towards re-defining their style and artistic growth".

According to the magazine's J. Lipshutz, the EP "mixes pop hooks, rap cadences and dance tempos in a manner familiar to mainstream K-pop, but each song lands with a dazzling intensity".

[91] The debut of Oddinary resulted in Stray Kids re-entering Billboard's Artist 100 at number one for the first time, becoming the fourth Korean act to top it since BTS, Blackpink, and SuperM.

[114] On February 24, 2023, the International Federation of the Phonographic Industry (IFPI) reported that Oddinary was the fourteenth best-selling album in 2022, alongside the October EP Maxident, which was sixth.