順調|じゅんちょうjunchou[0]heiban (flat)

1. na-adjective, nounfavourable; favorable; doing well; OK; all right
   すべてが順調じゅんちょうにいっている。↗

   Everything is going very well.

• Synonym快調かいちょうNeutralDescribes a good state or good progress, as in 「快調に走る」; leans toward the body or a machine being in good condition.
• SynonymスムーズNeutralA loanword for something going smoothly and fluidly, as in 「スムーズに進む」; common in speech, and can describe actions and movements as well.
• Related円滑えんかつNeutralFor things proceeding smoothly without friction, as in 「円滑な運営」; tends toward written or formal prose, stressing that nothing obstructs the process.
• Antonym不順ふじゅんNeutralMeans abnormal or irregular, as in 「天候不順」; used mostly of weather and menstrual cycles, and stands opposite to 「順調」.
• Antonym難航なんこうNeutralProgress is difficult and beset by obstacles, as in 「交渉が難航する」; the opposite of 「順調」.
• Antonym停滞ていたいNeutralThings stall and stop advancing, as in 「景気の停滞」; the opposite of 「順調」 and its sense of steady forward progress.

Use 「順調」 for something going ahead as planned. 「快調」 suits a body or machine in good form, 「円滑」 frictionless operation in formal prose, and 「スムーズ」 everyday speech. When things go badly, 「難航」 is troubled progress and 「停滞」 a standstill.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 物事ものごとが滞とどこおりなく捗はかどること。また、そのさま。