主おもだった

お

も

だ

っ

た

Meanings

pre-noun adjectival

chief; leading; prominent; principal; main; important

Pre-noun adjectival (rentaishi) used to describe the most important or prominent members of a group, or the main points of a topic. Often used with nouns like 人, メンバー, 理由, 作品.

主おもだったメンバーが会かい議ぎに出しゅっ席せきした。
The leading members attended the meeting.
主おもだった理り由ゆうは三みっつあります。
There are three main reasons.

See all 7 example sentences ›

Kanji

主lord, chief, master
立stand up, rise, set up
重heavy, important, esteem

Related words

主しゅ要よう
主要 is a noun or na-adjective meaning 'major' or 'principal', used in a wider range of contexts. 主だった is specifically a pre-noun adjectival form, more limited in use and slightly more formal or literary.

Written forms

主おもだった
Standard kanji spelling for this pre-noun adjectival.
主おも立だった
Alternate kanji spelling using 立; less common but still encountered.
重おも立だった
rarely-used kanji form
Rarely used kanji form; learners are unlikely to encounter it.

Etymology

Derived from the adjective 主 (おも, 'main') combined with the past tense form of the verb 立つ (たつ, 'to stand'), literally 'that which has stood out as main'. The form 主だった functions as a fixed pre-noun adjectival.