adjective overcrowded or cluttered with detail.
— synonyms: fussy
adjective intrusive in a meddling or offensive manner.
— synonyms: interfering, meddlesome, meddling, officious, busybodied
adjective crowded with or characterized by much activity.
adjective (of facilities such as telephones or lavatories) unavailable for use by anyone else or indicating unavailability.
— synonyms: engaged, in_use(p)