Reminiscential is an uncommon word that means suggestive of the past or suggestive of or inclined to reminisce. Synonyms for this word might include evocative, reminiscent, nostalgic, reflective, musing, contemplative, thoughtful, reminiscent, reminiscent of the past, and redolent of the past. Other similar words that might be considered synonyms include wistful, bittersweet, sentimental, pensive, and meditative. All of these words evoke a sense of looking back on past experiences or memories with a certain degree of sadness or longing. Whether you are reminiscing about a lost love or a time gone by, these words can help you capture the feeling of nostalgia and longing.