- occasional
- adj1. chance, irregular, intermittent, periodic; random, sporadic, fitful, erratic; infrequent, unfrequent, unhabitual, uncustomary, uncommon, unusual, unwonted, exceptional; rare, seldom seen or met, seldom, scarce.2. supplementary, supplemental, auxiliary, accessory, additional, added, annexed, multipurpose; extra, spare, surplus, nonessential, extraneous; provisional, part-time, temporary, non-permanent; incidental, odd, casual, scattered or sprinkled here and there or about, spread around.3. purposive, special, prepared for the occasion or event; commissioned, solicited, requested, asked for; commemorative, memorial, in honor of [s.o.]; holiday, ceremonial, festive, celebratory; inspirational, inspired, extemporaneous, extemporary, extempore, impromptu, Sl. made, off the cuff.4. causative, causal, effecting, effectuating, eliciting; motivating, influential, prompting, provocative, impelling, impulsive, propulsive, driving; germinal, seminal, beginning, starting.
A Note on the Style of the synonym finder. 2014.